In the below table we have tried to cover the unit weight of building materials which are most commonly used at the construction site. 01. Conventional concrete used in structures, such as buildings and pavements, has a unit weight in the range of 140 to 150 pounds per cubic foot (pcf). density (unit weight), temperature, and tests on hardened concrete for strength and other durability properties as re-quired in Contract documents or project specifications. CIP 36 - Structural Lightweight Concrete WHAT is Structural Lightweight Concrete? HOW is Structural Lightweight Concrete Used? Unit Weight (ASTM C 138) The unit weight, or density, of concrete varies with the amount and density of the aggregate, the amount of entrapped or entrained air, and the water and cement contents. But the relatively small cost associated with testing pays for itself rather quickly when problems or questions arise on projects. Sr. No. Lightweight concrete can be classed according to its unit weight or density, which normally ranges from 320 to 1920 kg/m 3, according to the ACI Committee 213 Guide for Structural Lightweight Aggregate Concrete (ACI 213, 2001).

The unit weight of precast concrete girders is generally taken as 10 pcf greater than the unit weight of plain concrete due to the weight of reinforcement and strands. Portland Cement: 1440 Kg/cu.m: 02. ... Unit Weight Of Aggregates, Unit Weight Of Bitumen, Unit Weight Of Bricks, Unit Weight Of Cement, Unit Weight Of Concrete, Unit Weight Of Sand, Unit Weight Of Steel, Unit Weight Of Water. Concrete, an artificial stone-like mass, is the composite material that is created by mixing binding material (cement or lime) along with the aggregate (sand, gravel, stone, brick chips, etc. Unit Weight of Building Materials. METHOD OF TEST FOR UNIT WEIGHT OF FRESH CONCRETE . Unit Weight of Building Materials: In this post, we are going to tabulate the Unit weights of different building materials. ), water, admixtures, etc in specific proportions. Comments ( 5) pavan kumar sen December 6, 2017 at 2:20 … For example, while calculating cement mortar ratio for plastering we will get the weight of cement in m3 or cubic feet. We can easily calculate the number of bags by multiplying the volume by unit weight. Before getting started. The specific weight, also known as the unit weight, is the weight per unit volume of a material.. A commonly used value is the specific weight of water on Earth at 4°C, which is 9.807 kN/m 3 or 62.43 lbf/ft 3.. W F = Weight of concrete per unit volume (air free) W A = Actual weight of concrete per unit volume. … The terms specific gravity, and less often specific weight, are also used for relative density.A common symbol for specific weight is γ, the Greek letter Gamma Weighing concrete in tonnes per cubic meter or kilograms kg, lb pounds per cubic foot or yd yards. However, while buying the cement in stores we need to calculate the number of bags. WHY Use Structural Lightweight Concrete? A. Convert this to KN/m 3 and figure out how many m 3 of concrete you have. Unit weight is the weight of the material per unit volume. Acceptance testing on hardened concrete is conducted in accordance with standardized procedures to determine whether the concrete as delivered has the potential of devel- per page . 10 Item(s) Show. SCOPE . Unit Weight of Different Building Materials. the normal weight is 2400 kg /Cum but as per design mix it will vary from 2300 kg to 2500 kg /cum.there is no difference to the fresh concrete weight to that of hardened concrete. So use 87.6 pcf. For the smaller residential concrete contractor, concrete testing may not be routine practice and even seem like an inconvenience. This test method describes the procedure for determining the unit weight in lb/ft. Weight of the concrete per volume of concrete. Formulas incorporating the measured unit weight and observed scale weights of all ingredients are included for the calculation of batch volume and actual cement content. for any submerged concrete use a unit weight of 150 pcf minus the unit weight of water, 62.4 pcf. Automatic calculator for the specific unit weight of a volume of concrete in pcf, lb/ft^3, lb/yd^3, kg/m3, fresh wet concrete mix and dry cured hardened concrete. Unit Weight. Comments ( 5) pavan kumar sen December 6, 2017 at 2:20 … The fresh concrete weight depends on the design mix. The unit weight of reinforced concrete is generally taken as 5 pcf greater than the unit weight of plain concrete. What is the Unit Weight and Why it is important? Rapid Hardening Cement: 1250 Kg/cu.m: 03. Concrete Testing Information on testing fresh concrete for air content, unit weight and more By George Seegebrecht. The compressive strength of concrete masonry units and masonry walls varies from approximately 1,000 psi (7 MPa) to 5,000 psi (34 MPa) based on the type of concrete used to manufacture the unit, stacking orientation, the type of mortar used to build the wall, and other factors. 3. foot of freshly mixed concrete. In the below table we have tried to cover the unit weight of building materials which are most commonly used at the construction site. In lieu of the measure, the bowl of the air meter may be used, since the test method prescribes a minimum sample size of 1/4 cubic foot.