As we know that Normal concrete weight. This lightweight concrete post is a low maintenance alternative to timber posts and removes the need for for nails, brackets or fixings. We carry pads ranging from 10 inches in diameter to 24 inches in diameter. Currently in Stock. These lightweight concrete slotted intermediate fence posts are suitable for both gravel boards (sometimes referred to as concrete fence panels) and timber fence panels, with slots the full length of the posts to enable stepping on uneven ground. Sand: 1260×2 = 2520 gm. The shape of the aggregates that are used in Lightweight Concrete may have a cubical,. In between these two, there is a moderate strength concrete (7-17 MPa) who thermal insulation characteristics are also in between those of low-density concrete. ft. Heat insulation on roofs. 6-ft H x 3-in W Silver Galvanized Steel Security Terminal Fence Post. Product Details. As the bottom of the fence panel is kept off the ground, rotting of the wood is prevented, considerably prolonging its lifespan. Shape (composed of smaller arches, flying buttresses, ribbing--look at Steve Corner's flying concrete) 3. Some installations don't require digging or concrete — simply stake the post into the ground. Comparisons of normalweight concrete and lightweight concrete bridge girders shipped approxi-mately 40 miles revealed 10 to 15% higher unit cost for thelightweight concrete, so a cost-effective material and the performance-based concrete can be obtained [ 5 – 9 ]. Concrete compressive strength decreases significantly with decreasing density and therefore, there are few examples of structural grade concretes with densities below 1,600 kg/m3. The best way to determine the size of the hole is: Diameter of the. Shop concrete, cement & stucco mixes and a variety of building supplies products online at Lowes. Lightweight self-compacting concrete: A review. DaveAtkins (Structural) 10 Jan 07 10:14. Find My Store. This mix comes in strong poly-lined bags to enable easy transportation. Delivered by our approved supplier, Find out more. Lite-Deck Fasteners are available in. Table 1 lists the technical specifications of lightweight concrete for international codes, including CEB-FIP [], ACI 213R [], ASTM C330 [], BS EN 13055 [], and Chinese JGJ 51 []. Mix in water to form a slurry and add a bonding agent. For general concrete work with a minimum of 2" thickness is best used for floors, patios, walkways, steps, curbs, basketball hoops, mail boxes, and flag poles. Lightweight. 5 cm 3. The standards mentioned, however, do consider only LWA of mineral origin. This study focuses on the development of durable structural lightweight concrete (LWC) by incorporating expanded perlite aggregate (EPA) in the range of 0 to 20% by weight. Less hauling and handling costs. You need to take a big bowl and pour the aggregate in it. Concrete. Product Description. Assorted containers - more on this in the next step but milk cartons, cups, and cardboard boxes are great. It is used in insulating water pipes. The Lightweight Concrete Post is a low maintenance alternative to timber, eliminating the need for nails, brackets and fixings. Wall Conditions. Lightweight concrete can be characterized as a sort of concrete that incorporates an expanding agent in that it enhances the volume of the concrete mixture while giving extra characteristics. com Expanding Foam vs. The information is based on many laboratory studies and records of a large number of existing structures that have provided satisfactory service for more than 85 years. For the beams, the specificationsSystem Wind Uplift Design/Layout. Oil palm shell (OPS) concrete filled steel tube (CFT) columns are acknowledged to be a new type of sustainable composite column. The plans call for a light weight concrete floor for the front porch which is 5′ to 7′ off the ground and for the back porch which is 7′ to 9′ off the ground. Examples are given of bridges in which lightweight concrete has been used successfully, ranging from simple reinforced concrete footbridges to long-span post-tensioned segmental box girder bridges. A few of these benefits include variety, repairability, durability, being environmentally friendly, and maintenance-free. They give superior resilience against severe weather conditions and are not susceptible to rust, rot or decay. Concrete Balustrade by Coral Cast. , rubber, limestone and porcelain dust residues along with expanded clay. Lightweight Concrete: Classification of Lightweight Concrete, Types of Lightweight Concrete, and Uses of Lightweight Concrete Lightweight Concrete Fence Post 2. Size (mm): 1525 x 130 x 123. In Poland, post-tensioned floors had and still are obstructed path of. 19 Solid DIY Shade Sail Post Ideas. For General insulative walls. BEST BANG FOR THE BUCK: XtremePowerUS Electric Post Hole Digger With 4″ Bit. The lightweight concrete floor system was used to minimize dead weight and to achieve a 3-hour fire rating. Generally a lightweight concrete mix without any heavy aggregates like sand or gravel would be three or four parts aggregate mixed with one part portland cement. Lightweight concrete was used in the precast, post-tensioned single cell box girders of the bridge. Transport costs for concrete posts are also usually higher, because they are much heavier, which means you can get less posts on a load. Some concretes are even designed to harden more quickly for applications that require rapid set time. 5. The regulations regarding the lightweight substrates. 8 3. space and only requires you to mix in water before getting started. Compressive strength. x 48 in. Lately, he’s been working with a new lightweight concrete mix that doesn’t need traditional reinforcement, so the material can be much thinner. Add pops of green to your tabletop with small indoor plants like succulents or terrariums. Figure 9. Lightweight aggregate concrete can be used in a variety of applications, including: Precast Concrete Products: Lightweight aggregate concrete is often used in precast concrete products, such as building blocks, pavers, and roofing tiles. Because it contains more cement than regular concrete. February 14, 2022. 6-in W x 8-in H x 16-in L Standard Cored Concrete Block. 3. Fresh Bulk Density (Freshly Mixed Concrete Density) is measured according to ASTM C138 using a ½ cubic foot measure. Also, for lightweight concrete, the effect of post-tensioning is higher (lower . 0 m centers. Item #53770 | Model #HB6990. in 3000 PSF soil. in 3000 PSF soil. Each end is assembled from three pieces with the middle piece having a hole to support a pipe. 50-lb Fast Setting Concrete Mix. In this concrete type, steel in. Infra-lightweight concrete is a structural lightweight concrete whose unusually good combination of low bulk density and excellent strength again makes it possible to build with insulating concrete, even for multi-storey structures. Refresh corners inside your home or outdoors with hanging baskets or wall planters that help keep the floor space free. Sika PostFix is a two-component, mix-in-the-bag expanding foam for supporting non-structural posts such as fence, mailbox, and signposts. 1. The lightweight concrete floor system was selected to minimize the dead weight and to achieve the required 3 hour fire rating (Fig. Use our concrete gravel boards in conjunction with our concrete posts to further increase the potential lifespan of your garden fence. Concrete. 13 Insulating Grade Lightweight Aggregate and Insulating Concretes Appendix 4A ACI 211. After the lightweight concrete is furnished, for preparation, placement, and curingA series of 44 lightweight reinforced concrete (LWRC) beams of 700 mm length and a rectangular cross section of 100x100 mm were cast, strengthened and then tested under three-points bending test. Here we show the development of structural lightweight aggregate concrete in the 1,200–1,600 kg/m3 density range. The material studied in the following is a structural lightweight concrete with an ultra-high-performance matrix and expanded glass as a lightweight. Boral has specially designed Lightweight Concrete using a non-toxic treated polystyrene aggregate or by the use of cellular foam injection by specially trained applicators. Lightweight Concrete Properties Mix 1. Abstract and Figures. The fibers were used to attenuate the fragile nature of lightweight concrete. Pour 6 cubic feet of perlite into the wet cement mixture. You may add fast set accelerator to expedite curing time. Concrete. Plastic planters are lightweight and easy to move around. You can build these forms and precast your own 48″, 36″, or 24″ reinforced lightweight concrete panels that link together to make long lasting and durable concrete garden boxes. Sample of 2 cubes. Title: Microsoft Word - 6900BD07 Author: Jim Auerbach Created Date:Ease the wear and tear on yourself, your crew and your equipment. Compare. 5" x 3. Our precast fences, panels, and posts are. You can build these forms and precast your own 48″,. 4 with cement sand ratio 1: 2 and if the coarse aggregate is also added then 1:1:2. To begin, mix together the ingredients for lightweight concrete. 5 cm. Light-Duty Fence Post is a powder-coated steel post designed for lighter duty applications. Each specimen had three supports with two spans. Due to the nature of the aggregates, use of lightweight concrete is more technical than portland cement concrete. With the help of LWC, we can lower the dead weight/load. Compressive strengths of up to 36. The European standard EN 13055 holds amongst others for LWA to be used for any type of lightweight concrete. Product shape. This lightweight concrete post is a low maintenance alternative to timber posts and removes the need for for nails, brackets or fixings. Previous article. View Now. 0. Lightweight structural concrete can be used to build residential and non-residential buildings in seismic areas. Compared to ordinary mix concrete (OMC), LWC can substantially lessen the dead load of high-rise structures. Because more goods can be transported on trucks thanks to the. A well-known product is the AAC, also called. In this experimental study, six post-tensioned light weight concrete (LWC) continuous one-way slabs were tested in the following manner: the flexural behaviors of the members were compared with the calculations from the existing standards. 97% Lighter Than Concrete. 5013053149713. the lightweight aggregate gets hardcore. 36m will provide the finest level of support to your fence panels. It is used in casting structure steel to protect its against fire and corrosion or as a covering. The compressive strength of this concrete ranges between 17 MPa (2,500 psi) to 34 MPa (5,000 psi) or higher. A: (Schundler) Light-weight concrete is used regularly in building as well as restoring flat roof decks. Because lightweight concrete is typically thinner, it is made of different ingredients from traditional concrete. CIVIL ENGINEER MAG. TuffBlock removes the need for digging holes and pouring concrete, making it the easiest and most versatile foundation system on the market. C. Use Current Location. Use a trowel. You can double or triple the measurement, depending on how big you want your pots to be or if you want to make multiples in one go. If required, increase cement in the mixture to maintain this high slump. Harper Precast provides precast concrete fence solutions. Weight savings of 25 to 30 per cent on the superstructure can be achieved in some cases, with consequent savings of reinforcing. Return this item for free. Safety Data Sheets (SDS)He soon switched from bowls to bricks, planters, tiles, and countertops. 3m Post: N/A: 3. Lightweight concrete, often abbreviated as LC, is a versatile building material that offers numerous advantages in construction. A Rhinorock patented concrete clad wall is affordable because it is produced with a unique manufacturing process that makes the fencing panel 90% lighter than a traditional heavy concrete fence. The results suggest that the concrete mix containing the manufactured plastic aggregate at a replacement level of 25% can be used in structural. Post Tension Concrete; Steel Fibre Concrete; Delivery Fleet; About Us; Contact; LightWeight Concrete. A low maintenance alternative to wooden fence posts, the Lightweight Concrete Post eliminates the need for nails, brackets and fixings. The process of concrete hardening once it has been placed is called curing, and is a slow process. Bigfoot Systems 25. 7000+ psi. 2. Step 1: Materials + Tools. Libre et al. This two-part, pre-proportioned polyurethane expanding foam has been specifically formulated to provide a lightweight, mix-in-the-bag, fast-setting. In this experimental study, six post-tensioned light weight concrete (LWC) continuous one-way slabs were tested in the following manner: the flexural behaviors of the members were compared with the calculations from the existing standards. Meets Class A of EN 12839. Sample of 2 cubes. 🕑 Reading time: 1 minute Ultra-lightweight concrete, which is also known as super lightweight concrete or infra-lightweight concrete, is a state-of-the-art concrete in terms of density and insulation properties and classifies as concrete with a dry density lesser than 800 Kg/m 3. 95 billion in 2020. Definitions of lightweight concrete vary among international standards and codes of practices. 8 out of 5 stars 606 ratings. The pipe is PVC plastic and forms the holes in the casting. Save lifting heavy loads with a 97% weight reduction over the equivalent concrete alternative. 1: Typical Concrete Block Masonry Unit (Hollow Unit, with Flanged Ends) (Ref. Check out our lightweight concrete planter selection for the very best in unique or custom, handmade pieces from our planters & pots shops. g. Our concrete posts are heavy-duty and can withstand the elements. 4. It is a lightweight, patent-pending technology that eliminates the need for mixing concrete with water, saving users from the mess and preparation required when using traditional concrete. Lightweight replacement for concrete. - Each TuffBlock is load rated for 1700lbs. As a first step of the design process, economic comparisons were made between concrete and structural steel. The features are compatible back to LRFD 1st Edition 1994. Get Pricing & Availability . The standards mentioned, however, do consider only LWA of mineral origin. Definition: concrete of substantially lower density than that made using aggregates of normal density; consists entirely of lightweight aggregate or a combination of lightweight aggregate and normal-density aggregate; its equilibrium densities are generally between 70 and 120 lb/ft3 (1120 and 1920 kg/m3). Abstract. Pavement structure comparison 4 Figure 1. 1. An overview and notable changes to ACI 301-20 are provided in the following sections. State-of-the-Practice Report Partial-Depth Precast Concrete Deck Panels (. 7, 83. As a result, it gets pricey. The major benefit of concrete fencing is that it is maintainence free. Concrete with aggregate density less than 500 kilograms per cubic meter (31 pounds per cubic foot), for example, is considered ultra-lightweight, while structural concrete. $23. Weighing only 8kg with its slim-line and light weight design, DuraPost can be installed quickly and with just one pair of hands. Strong, durable, easy maintenance and unaffected by rot. Then I stop and use an improvised stir stick from a wooden dowel to hand stir the cement mix. Lightweight Insulating Concrete. Common uses: Post setting for fences,. Surface Finishes. CAMO BLOCK is a lightweight, heavy-duty alternative to concrete deck blocks. Mix design. Under standard residential floor load reinforced concrete panels require support at 2’ oc max. When compared to a typical one, the strength of LWC is 25. Is a concrete wall cheaper thanChapter 48, ˜Lightweight Concrete and Aggregates˜. Most low-density aggregates are volcanic in origin and include pumice, tuff, scoria, and cinders. High-density concrete — also called heavy weight. A. Lightweight structural concrete - just a lighter weight version of conventional portland cement concrete, utilizing sintered clay or expanded shale coarse aggregate to reduce the conventional unit weight by about 20. 2. The sides have a hole for the other end of the pipe. Mix the concrete. This is the highest value of density. 0 MPa). 6. We provide lightweight and heavy-duty slotted fence posts in a variety of lengths. 2. , 16 in. 3. 5 parts of coir fiber, and 1 part of Portland cement in a plastic tub. Although the use of lightweight concrete (LWC) dates back to 3000 B. Model # 58910156. C. 37 inc VAT Each. Technically, you will be targetting a mix density of around 100 lb/cu. 8' x 4" x 3" Forest Concrete Fence Post. Thermal conductivity is decreased with lightweight concrete. Dallas, March 03, 2022 (GLOBE NEWSWIRE) -- As per the report published by The Brainy Insights, the global lightweight aggregate concrete market is expected to grow from USD 32. However, when evalu - ating the cost of using lightweight concrete for a project, long-term costs related to durability and service life should be considered, as well as initial costs. 00 (17% off) FREE shipping. For advice & prices complete the contact form below or call +44 (0) 1795 509 382. 05%- 0. predict the ultimate strength of the local zone in lightweight concrete. Add To Cart. Shop Basalite 50-lb High Strength Concrete Mix in the Concrete, Cement & Stucco Mixes department at Lowe's. To keep concrete from sticking to the forms, they are often coated with a low-grade oil, or form-release agent. 35kg. post-tensioned continuous lightweight concrete slabs. Wipe the inner and outer molds with motor oil or release spray. Once the aggregate and water are mixed, a suitable amount of cement should be added to the mix. lightweight concrete beams. Allow the panel to cure for several days. It is a lightweight, patent-pending technology that eliminates the need for mixing concrete with water, saving users from the mess and preparation required when using traditional concrete. They give superior resilience against severe. Position the post in its hole and adjust it so it is perfectly vertical (plumb) using a level. 28 times lighter than standard concrete. What are concrete fence posts made of? They are durable, heavy duty, and protecting both preventable and corrosive. This is PART 3, showing options to make your garden boxes from lightweight concrete. Posts are secured in the ground with 18'' of concrete footing. Forest Repair Spur 75mm x 75mm x 1m 3 Pack (725JG) compare. Find My Store. In your case, control joints are needed at intervals of 3' to 4'-6" oc. Each block will support up to 770 kilograms and tested to over 5,000 kilograms. Concrete Balustrade System – Concrete Balusters, Posts, & Handrails For Residential Homes & Commercial Buildings coralcast 2023-11-13T12:13:12-05:00. Visit your local store for the widest range of storage & home products. Lightweight; Product Quantity. " You can see more applications for concrete cast in 3D printed formworks in this BigRep video: o. Dia footer of 2,355 lbs. Cement: 1620×2 = 3240 gm. Description. 89 N/mm2. Dom’s Rustic Garage shows the world how to build a heavy-duty sixteen-by-twenty shade sail post project for under $250 using cam. Not available for delivery. Specifically, it has an in-place density of 90 to 115 lb/ft³, whereas the density of regular-weight concrete ranges from. for pricing and availability. This makes lightweight concrete. , 2021), the cross section of the test beam is designed as a T-section. , 14 in. Bridge approach embankments (Indiana) 5 Figure 1. 0 MPa. We firmly believe and emphasize the long-term benefits of LWIC decks including customized slope to drain, reroofability, and no loss of thermal resistance over time. PART 2 - PRODUCTS 2. Lightweight Concrete Countertop: Spray the First Layer, Pack the Second Layer. 00 kN/m3. Colour. ft. 5013053149713. There are some key considerations you need to keep in mind if you want to make the most out of your lightweight concrete. Lightweight concrete isn't really used for tabletops because it generally has a lower flexural strength than normal weight concrete. Lightweight concrete is mostly used for retrofits where the existing structure may not be able to handle additional dead load. A manual screen with 19 mm (3/4′′), 9. thick slabs supported on 18 in. 10 Polymer Modified Lightweight Concrete 4. Fast 2K Fence Post Mix is a revolutionary product that replaces traditional concrete as a fencing post installation material. pdf) (November, 2021)I'll list ALL of the items you'll need at the end of the post, but here are the step by step instructions. Once cured, Artisans align lightweight GFRC bamboo panels with pre-fabricated channels in the posts which makes placement easy. Delivery Next day available. Some of the tutorials I found used wood wine barrel planters -- but the ones I found either had large holes already drilled into the bottom or they weren't super sturdy. Find out how quick and easy it is to set your fence with Pro-Set fence post foam. 2. 2360mm x 106mm x 84mm. Are lightweight concrete fence posts any good?They are easy to install and are up to 45% lighter than conventional concrete posts. For Homeowners. Find My Store. A structural light weight concrete has strength in the range of: 28 days compressive strength greater than 17 MPa, and 28 days unit weight (air dry) less than 1850 Kg/m3. 16lbs but load-rated to support over 1800lbs, CAMO BLOCK is an easy-to-carry deck foundation that also nests together for easy transport. Sheet Layouts. 8. The 60-story Nations Bank Building in North Carolina, United States used presoaked expanded shale lightweight aggregate in 117 mm thick slabs that were supported on posttensioned concrete beams at 3. that's vs. Thoroughly tested and approved by the International Code Council Evaluation Services, this post footer makes. Using less sand can make the product lighter, but it can also make the concrete weaker structurally. 5 mm (3/8′′), and 4. Quantity. Lightweight CMU also provides excellent fire resistance, strong sound. Multi-Purpose Fence 4-1/2-ft H x 1-1/2-in W Black Steel No Dig Flat-top Garden Universal Fence Post. EXPANDED SHALE CLAY & SLATE INSTITUTE 2225 E MURRAY-HOLLADAY RD, STE 102 SALT LAKE CITY, UT 84117 PH: 801-272-7070 FAX: 801-272-3377 . These values can be compared with those for normal weight concrete of approximately 2100–2500 kg/m 3, 15. Model # P M206. BEST MANUAL: Ames Post Hole Digger With Ruler. The density varies between 3000-4000 kg/m³. The water-cement ratio for such concrete is 0. Simply slide your panels between the grooves. The most significant examples of that time were the Port of Cosa, the Pantheon Dome and the Colosseum (ACI Committee 213, 2003). To save money, we need to do them ourselves, but the posts need to be 9 foot. I would second the suggestion to use Quikrete's countertop mix. Although lightweight concrete costs more to produce, it offers numerous benefits to. Low Density Concrete. Find Fence post mix concrete, cement & stucco mixes at Lowe's today. 08% of the concrete mass. At strength level of 2,400 to 5,080 psi (20 to 35 MPa), the relatively similar. Lightweight concrete is made from lightweight coarse aggregates, such as shale, clay, or slate, and it has a particularly low density—thus the name. 8000 psi. £15. 5 parts of perlite, 1. We offer gypcrete and light weight concrete to the residential and commercial space. The outer lightweight concrete friendly with steel member, improved wall fire, waterproof and sound transmission. Side Tables and Stools. Lightweight concretes can be produced with an over-dry density range of approximately 300 to a maximum of 2000 kg/m 3, with corresponding cube strengths from approximately 1 to over 60 MPa and thermal conductivities of 0. g. Inclusion of nano-materials can enhance strength properties. and aluminum content should be 0. Considering that T beams have high flexural and shear resistance (Gulec et al. Also investigated in this thesis are equations to predict the splitting cylinder strength and modulus of elasticity of lightweight concrete. Permanent Substructure (steel, timber, frame) 4. The Lightweight Concrete Fence Post 2. Density: 1350-1850 kg/cubic meter; This concrete is used for structural purposes i. The intrinsic properties of lightweight concrete (LWC) provides promising scope of using in structural purposes. Product shape. For Reinforced concrete. It is used for reinforced concrete. In this study, we explore printing lightweight concrete by replacing normal weight aggregate with lightweight aggregates such as cenospheres,. No fine concrete has an aggregate/cement ratio of 2: 1. Tax excluded. FREE Returns . The usage of lightweight concrete decreases the overall weight of concrete, resulting in reduced structural element dimensions []. Thanks to their durability, concrete fence posts are long lasting and require minimal maintenance. Concrete is a material comprised of a number of coarse aggregates (particulate materials such as sand, gravel, crushed stone, and slag) bonded with cement. Maxrete® lightweight insulating concrete mix is designed using lightweight clay aggregates. Pour the bucket of water into a concrete mixer. They are easy to install and are up to 45% lighter than. Find great deals on a wide variety of post bases, caps & more for all your renovation needs at the lowest prices at the Home Depot Canada. Walterboro, SC 29488. They keep the timber panel off the ground & prevent any unnecessary rotting. But there’s no compromise on strength. For help choosing the right products for your project, see our Masonry and Cement Products Buying Guide . Advantages of Lightweight Concrete (LWC) Reduction in dead weight. Because of the lower post-elastic capacity of lightweight concrete, it is prudent to limit the maximum strength levels too the ACI 318 requirements which govern shear, tension, torsion. Lightweight concretes produced by these various methods may range in unit weight from 15 or 20 lb/ft 3 to weights only slightly. Concrete is much heavier but costs less than expanding foam. For 25% replaced light weight aggregateConcrete 3D printing is a sustainable solution for manufacturing efficient designs and creating less waste, and selecting the optimal materials to use can amplify the advantages of this technology. The advantage to these types of aggregate is that they often do not require processing apart from crushing or screening. Sika PostFix is a two-component, mix-in-the-bag expanding foam for supporting non-structural posts such as fence, mailbox, and signposts. Concrete. It is ideal for creating deck, porch and other load-bearing supports as well as decorative and attractive bases for post-setting applications. bag of Portland cement to the water in the mixer, as well as the bucket of sand. Its density does not exceed 180 kN/m² because of the use of light and porous aggregate. Most concrete posts have slots down the length of the post for the sides of the panels to slot into. 35kg. To begin the process, add five gallons of water to the mixer. The ratio between the splitting tensile strength and compressive strength decreases significantly with the increasing strength of lightweight concrete. 5, showing options to make your garden boxes from Perlite-based concrete. 2 as concrete containing lightweight aggregate and having and air-dry unit weight not exceeding 0. The mixture ingredients include: ordinary Type I Portland cement, lightweight coarse aggregate of a maximum size of. When looking for a durable, low-maintenance and cost-effective alternative to traditional fencing without the use of heavy construction, look no further than American Precast Concrete, Inc. This two-part, pre-proportioned. Description. The lightweight and structurally efficient elements are prefabricated and assembled on-site. The bond stress of no fine concrete can be achieved from 1. Concrete mix is a uniformly blended mixture of Portland cement, aggregate, sand and other approved ingredients. SAKRETE Light Weight Concrete Mix is a general purpose concrete mix manufactured using light weight aggregates. 46 MPa) and low density (0. Since the purpose of a tabletop is to span between the frame or legs, it's a pretty critical property of the concrete. Contact us at 843-821-7600. For heat insulation on the roofs. What is Light Weight Concrete. CAMO BLOCK is a lightweight, heavy-duty alternative to concrete deck blocks. This should be run one part for the mix. Structural Lightweight Concrete (SLWC) – This concrete has a density range of 800 kg/m³ (50 lb/ft³) to 1850 kg/m³ (115 lb/ft³). When concrete is filled with air, like a balloon, it can be light weight. Cubic foot concrete weighs 145 pounds. Easy to Hoist and Demount 3-Point Shade Sail Post Idea. It's. Most low-density aggregates are volcanic in origin and include pumice, tuff, scoria, and cinders.