This free concrete calculator estimates the amount of concrete necessary for a project, and can account for different shapes and amounts of concrete. Explore other calculators related to housing or building, as well as hundreds of other calculators addressing finance, math, fitness, health, and more.
The modulus of elasticity depends on the beam's material. The higher a material's modulus of elasticity, the more a deflection can sustain enormous loads before it reaches its breaking point. Concrete's modulus of elasticity is between 15-50 GPa (gigapascals), while steel's tends to be around 200 GPa and above. This difference in the values of
4.1 This test method is used to determine the flexural strength of specimens prepared and cured in accordance with Test Methods C42/C42M or Practices C31/C31M or C192/C192M.Results are calculated and reported as the modulus of rupture. For the same specimen size, the strength determined will vary if there are differences in specimen preparation, curing procedure, moisture condition at time of
Feb 03, 2011· Essentially you are solving for volume and then converting to cubic yards. For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields .011 cubic yards
Break Even Point Formula and Example. The Break Even Calculator uses the following formulas: Q = F / (P − V),or Break Even Point (Q) = Fixed Cost / (Unit Price − Variable Unit Cost) Where: Q is the break even quantity, F is the total fixed costs, P is the selling price per unit, V is the variable cost per unit.
The only way to specifically calculate the load capacity of concrete is to have a licensed structural engineer process the formulas and consult a myriad of tables that all apply to the specific design of your project. You can, however, calculate the load capacity of concrete in a quick and general way.
The break-even point occurs when total cost equals total revenue. Laying out these three statements as an equation, a break-even point occurs when (Price Per Item) x (Quantity of Items Sold) = (Fixed Costs) + (Variable Costs).
and embedment depth for mature concrete can be applied to early-age concrete, specifically, whether at early age the breakout capacity is properly modeled using the compres-sive strength or whether an early-age correction factor is needed. Breakout failure is influenced by the tensile and compressive strength of the concrete, the variability of the
Calculator Results Disclaimer. The results provided herein were generated using recognized engineering principles and are for informational purposes only. All information is provided as is, exclusive of any warranty, including, without limitation, any implied warranty of merchantability, fitness for a particular purpose, or any other warranty
That tensile strength is the basis for its ability to resist bending, or its flexural strength. ACI 207R, Effect of Restraint, Volume Change, and Reinforcement on Cracking of Mass Concrete, states in Chapter 3 that concrete’s tensile strength is often taken as 6.7 times the square root of its compressive strength. It also notes that where a
Break Even Point Formula and Example. The Break Even Calculator uses the following formulas: Q = F / (P − V),or Break Even Point (Q) = Fixed Cost / (Unit Price − Variable Unit Cost) Where: Q is the break even quantity, F is the total fixed costs, P is the selling price per unit, V is the variable cost per unit.
Description. This web applet, based on various established correlation equations, allows you to quickly convert between compressive strength, flexural strength, split tensile strength, and modulus of elasticity of concrete.
the breaking point. Apply the load constantly at a rate of 860 to 1210 kPa/min (125 to 175 psi/min) until rupture occurs. NOTE: When using a standard field flexural testing machine, the B spiral shall be used for 1993 specification projects (English values) and the IP spiral for
Special Class Concrete. High strength 65 MPa, 80 MPa, 100 MPa. Commonly used for projects requiring high strength concrete with options in design slump between 140 and 200 mm. 65 MPa concrete is available in 10 mm, 14 mm and 20 mm aggregate sizes while 80 and 100 MPa are only available in 10 mm and 14 mm aggregate size.
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What You Should Use This Calculator For. You should use this calculator to compare materials, diameters, and wall thicknesses to find out how to make your designs safer. For example, lets say your local metal distributor has 1.75x.095 tube and 1.25 solid bar on sale from some huge bulk purchase that fell through with another customer.
Jul 21, 2016· Since this is a simply supported beam, the applied load can be modeled as a point load at the center of the beam for the worst-case scenario. Image credit: wikipedia. Deflection due to the applied load in this condition is calculated as: The total deflection at the center of the beam is: Deflection of shafts with two bearings
Concrete shrapnel can damage siding and break windows, and it’s a real chore to clean up. Flying shards of concrete can damage siding, break glass or even cut you. Rather than setting up plywood to protect windows and siding, roll 6-mil polyethylene (at home centers) over the patio or sidewalk.
5.1 Care must be exercised in the interpretation of the significance of compressive strength determinations by this test method since strength is not a fundamental or intrinsic property of concrete made from given materials. Values obtained will depend on the size and shape of the specimen, batching, mixing procedures, the methods of sampling, molding, and fabrication and the age,
Dec 30, 2002· Most P/T wood is Southern Pine. Assuming #2 grade, the Fc = 525 psi and E = 1.2. L/d ratio is 13 Allowing for buckling, allowable compressive stress is roughly 475 psi, Area is 30 sq in, so the allowable force in the post is 14,300 lb.
every point in the cross section. This product is known as the shear flow and denoted by the letter q, and Eq. (5.6) can be written as q=t t =constant (5.7) The largest shear stress occurs where the thickness of the tube is smallest, and vice versa. When the thickness is constant, the shear stress is also constant.
Related Topics . Beams and Columns Deflection and stress, moment of inertia, section modulus and technical information of beams and columns; Related Documents . Continuous Beam Moment and Reaction Support Forces Moment and reaction support forces with distributed or point loads; Floor Joists Capacities Carrying capacities of domestic timber floor joists Grade C in metric units
Aug 31, 2020· Flexural strength of concrete is evaluated to compute the direct tensile strength of concrete, as direct tensile strength of concrete is difficult to determine. Principle of test method. A test specimen concrete beam is casted in the field having 6 x 6 inches (150mm x 150mm) having span length not less than three times the depth of beam.
Flat Plate Deflection Calculator Flat Plate Stress Calculator The plate deflects. The middle surface (halfway between top and bottom surfaces) remains unstressed; at other points there are biaxial stresses in the plane of the plate.