Concrete Calculator

Concrete Calculator. Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate material consumption viz., cement, sand, stone gravel for the following concrete mix ratios - 1:1.5:3, 1:2:4, 1:3:6, 1:4:8, 1:5:10. Once, the quantities are determined, it is easy to estimate the cost of a ...

Reinforcement in Concrete Topic

Most concrete used for construction is a combination of concrete and reinforcement that is called reinforced concrete. Reinforcement for concrete is provided by embedding deformed steel bars or welded wire fabric within freshly made concrete at the time of casting. The purpose of reinforcement is to provide additional strength for …

Mobile Concrete Crushers: 90-385 TPH | RUBBLE MASTER

High-quality aggregates for a high-quality operation. Increase Profits Eliminate disposal fees. Reduce trucking costs. Create your own stockpile of valuable, gradable, and compatible material. Whether you save it or sell it, crushing your concrete will increase your profits. Minimize Downtime … See more

Reinforced Concrete Beam

P y. y L 1. Yielding of the Steel Rebar. Next, calculate the stress in the concrete at the top of the beam at the load that d causes the steel to yield NA. b ccr. nA. S h. Determine …

Considerations when choosing a concrete crusher

These are important questions that need answering when choosing the right machine for your application. Output size. This determines what type of products may be produced from the crusher. A …

Removing reinforced steel from concrete

Concrete generally has reinforcing steel rods embedded in it and during the crushing process the steel is broken into short lengths with very sharp points. The steel has to be removed before the concrete can be reused and the most efficient method of recovering the steel is through magnetic separators. Below is an outline of the magnetic ...

Concrete Pipe Use Manual

SPECIAL SHAPE PIPE AND PRECAST CONCRETE BOXES ASTM C506 Reinforced Concrete Arch Culvert, Storm Drain, and Sewer Pipe C506 arch pipe is used for sizes 18 in. through 132 in. equivalent circular sizes and is available with tongue and groove cement mortar or mastic compound joint. This arch-shaped pipe is used for minimum

Concrete Demolition Methods & Equipment

One of the oldest and most commonly used methods for building demolition, the ball and crane uses a wrecking ball weighing up to 13,500 pounds to demolish concrete and masonry structures. During the process, the ball is either dropped onto or swung into the structure that is to be demolished.

Reinforced concrete: Jonathan Ochshorn's Structural …

Testing of many reinforced concrete beams has shown that the average stress within the compressive zone is 0.85β 1 fc ', and the resultant location is β 1 c /2 from the face of the concrete beam, as shown in Figure 5.23a. The coefficient β 1 ranges from 0.85 for fc ' ≤ 4000 psi, to 0.65 for fc ' ≥ 8000 psi (Figure 5.24).

Introduction to Reinforced Concrete Structural Design

Now lets check a reinforced concrete simply supported beam by the working stress method. ACI Table 9.5(a) requires a minimum length to depth ratio of H = L/16, where L is the length between supports in inches. Lets assume L = 24 feet, the beam depth must be H = 12x24/16 = 18 inches. Because of the high moments we will start with a beam H of 24 ...

Removing reinforced steel from concrete

Recycled concrete requires the crushing and removal of reinforced steel during processing. Malcolm Davy discusses how magnetic separators can assist in the process. Today, the recycling of materials is …

How to Crush Concrete Slabs Into Stone Sized Pieces | ehow

Step 4. Strike the slab with a sledge hammer about 12 inches from the point where the pickax touches the underside of the slab. Do this repeatedly, and after a short time the slab will break up into small pieces.

Crushed Concrete Aggregates

Properties of Crushed Concrete Aggregate 1. Size of Aggregate Crushed concrete shall be processed to reach suitable sizes. The crushing method (mechanical or manual) of concrete to produce coarse aggregate for the production of new concrete is one of the factors that affect the strength of the concrete. It is reported that, coarse aggregate ...

The 411 on Recycled Concrete: Uses, Benefits, and How To

Recycled concrete can also be used to create 2"-4" recycled stone. This product is typically used for site stabilization, bottom layer road base, and backfill. Besides stone, recycled concrete can also be used to create engineered fill sand. This fine-grained material neutralizes pH levels and is commonly used for environmental fill and ...

(PDF) A Practical Finite Element Modeling Strategy to

Concrete crushing in compression: The constitutive model for concrete in uniaxial com- pression is usually provided as a stress–strain relationship in design codes, e.g., Model Codes [14,15] and ...

REINFORCEMENT FOR CONCRETE— MATERIALS AND …

2.2—Reinforced concrete Plain concrete (Fig. 2.2) has compressive strength—the ability to resist crushing loads; however, its tensile strength is only about 10% of its …

Eurocode 2 Table of concrete design properties

Concrete Design Properties according to EN ( γc = 1.50, fyk = 500 MPa) According to EN §3.1.3 (2) the following modifications are applicable for the value of the concrete modulus of elasticity Ecm: a) for limestone aggregates the value should be reduced by 10%, b) for sandstone aggregates the value should be reduced by 30%, c ...

Crushed Concrete (A Complete Guide & Calculator )

4 inches of crushed concrete; Covering 300 square feet; The density of crushed concrete: ~2,410 kg/m³; Volume = 300 sq ft × (4/12) ft = 100 cubic feet = 100 …

Concrete Calculator

Concrete is a material comprised of a number of coarse aggregates (particulate materials such as sand, gravel, crushed stone, and slag) bonded with cement. Cement is a substance that is used to bind materials, such as aggregate, by adhering to said materials, then hardening over time. While there are many types of cement, Portland cement is the ...

Failure Modes in Concrete Beams: Flexural and Shear Failure

Flexural tension failure initiates by yielding of steel reinforcement followed by crushing of concrete at compression side of the beam. It occurs when the beam is under-reinforced; the reinforcement ratio in the beam is low than balanced reinforced ratio as per ACI 318-14.

Crushed Concrete Driveway

The cost of crushed concrete often depends on the kind of concrete that you buy, where you buy it from, and the market conditions. Most businesses either charge for crushed concrete by the yard or ton. If you buy your crushed concrete by the ton, it will likely cost you anywhere between $6 and $14 per ton.

Reinforced Concrete; Definition, Reinforcement Types, …

Therefore, reinforced concrete is a durable and relatively ductile composite material comprising concrete and embedded steel reinforcement (bars, wires, mesh, etc.), the latter being used to augment the tensile capacity of concrete. ... If in a reinforced concrete section, the yielding of steel and crushing of concrete occur simultaneously, …

STRESS-STRAIN CURVE FOR CONCRETE

The average stress is 0.72 for concretes up to ultimate strength of 30 MPa (4000 psi). The factor γ indicates the ratio of breaking strength to the ultimate strength. γ =. Breaking stress Ultimate Stress ( f c ′ ) = 0.85 (average value) The ratio of average to crushing stress of concrete is denoted by β and is found for concrete of ≤ 30. 1.

Reinforced Concrete Beam

P y. y L 1. Yielding of the Steel Rebar. Next, calculate the stress in the concrete at the top of the beam at the load that d causes the steel to yield NA. b ccr. nA. S h. Determine also the ratio fc-yield /f'c, to see if it is less than approximately 0.7, an upper bound for "roughly" linear concrete stresses.

Concrete Weight Calculator

This calculator offers you a choice between five different types of concrete. Here is some information on them: Asphalt (density: 2,243 kg/m³ / 140.03 lb/ft³) – a composite material most commonly used for surfacing roads, airports, and the core of embankment damsmonly known as simply asphalt or blacktop, it is chosen for …

Concrete and Reinforced Concrete – IspatGuru

Concrete and Reinforced Concrete. Concrete is a composite building material made from a mixture of sand, gravel, crushed rock, or other aggregates (coarse and fine) held together in a stone like mass with a binder such as cement and water. The stone like mass is formed due to the hydration of cement and eventually due to its …

(PDF) Evaluation of the test method for crushing strength of …

In that condition, the use of steel bars could be considered as a successful conventional reinforcement. Alternatively, steel fibre reinforced concrete pipes (SFRCPs) have been studied for total ...

Concrete and reinforced concrete

Artwork: How reinforced concrete fails: (1) Alkalis from the cement react with silicas in the aggregates, forming larger crystals that crack the concrete apart from the inside, (2). Water flows in down the cracks (3), rusting the rebar (4), which can break apart and cause more cracking or "spalling" at the edges (5).

Mechanical Properties of Concrete and Steel

Concrete is much stronger in compression than in tension (tensile strength is of the order of one-tenth of compressive strength). While its tensile stress-strain relationship is almost linear [Fig. 1.1(i)], the stress ( ) vs. strain ( ) relationship in compression is nonlinear. Fig. 1.1(ii) shows a typical set of such curves.