How do you calculate water cement ratio and cement content for a design concrete mix?

How do you calculate water cement ratio and cement content for a design concrete mix?

The water to cement ratio is calculated by dividing the water in one cubic yard of the mix ( in pounds) by the cement in the mix (in pounds). So if one cubic yard of the mix has 235 pounds of water and 470 pounds of cement- the mix is a . 50 water to cement ratio.

What is the ratio in concrete mix design?

Designed Mix Ratio of Concrete

Concrete Grade	Mix Ratio	Compressive Strength
M15	1 : 2 : 4	2175 psi
M20	1 : 1.5 : 3	2900 psi
Standard Grade of Concrete
M25	1 : 1 : 2	3625 psi

How do you design a concrete design?

Concrete Mix Design Made Easy

1. Step 1: Slump Flow.
2. Step 2: Aggregate Size.
3. Step 3: Mixing Water and Air Content.
4. Step 4: Concrete Strength and Water/Cement Ratio.
5. Step 5: Coarse Aggregate.
6. Step 6: Fine Aggregate.
7. Step 7: Adjustment for Moisture in Aggregates.
8. Step 8: Summary Design.

Is code for concrete mix design latest?

The mix design as per IS is in line with ACI 211.1. The code permits the use of 1. supplementary materials such as chemical and mineral admixtures. Provisions of IS 456:2000 are applicable for durability requirements with all types of exposure.

Which code is used for concrete mix design?

The guidelines given in various codes like SP: 23-1982, IS: and IS: 456-2000 has been adopted for mix design of concrete. For the present investigation, it is required to have characteristic compressive strength 40 N/mm2. The compaction factor for the design mix is taken as 0.9.

Is code for ready mix concrete?

As per Indian Standard code of practice (IS 4926) Ready Mixed Concrete (RMC) is defined as the concrete delivered in plastic condition and requiring no further treatment before being placed in position in which it is to set and harden.

How do you calculate mix design?

Procedure for Concrete Mix Design of M25 Concrete

1. Step 1 — Determination Of Target Strength.
2. Step 2 — Selection of water / cement ratio:-
3. Step 3 — Selection of Water Content.
4. Step 4 — Selection of Cement Content.
5. Step 5: Estimation of Coarse Aggregate proportion:-
6. Step 6: Estimation of the mix ingredients.

How much is 1m3 of concrete?

Typically, 1m3 of concrete is made up of 350Kg of cement, 700Kg of sand, 1,200Kg of chippings and 150 Litres of water.

How do you calculate 1m3 of concrete?

Thus, the quantity of cement required for 1 cubic meter of concrete = 0.98/0.1345 = 7.29 bags of cement. The quantities of materials for 1 m3 of concrete production can be calculated as follows: The weight of cement required = 7.29 x 50 = 364.5 kg. Weight of fine aggregate (sand) = 1.5 x 364.5 = 546.75 kg.

How many bags of cement make 1m3?

29 bags

How many kg is 1m3 of concrete?

concrete volume weight chart:
Unit	Kilogram	Pound
cubic meter of concrete	2,406.53 kg/m^3	5,305.49 lb/m^3
cubic yard of concrete	1,839.92 kg/yd^3	4,056.34 lb/cu yd
cubic foot of concrete	68.15 kg/ft^3	150.23 lb/cu ft

How many wheelbarrows are in 1m3 of concrete?

25-30 wheelbarrow loads

How much steel do I need for 1m3 of concrete?

Minimum quantity of steel required for 1m3 concrete slab is 1%, now 1% of 1m3 = 0.01 m3, and we know that 1m3 steel weight is 7850 Kg, so weight of 0.01m3 steel = 0.01 × 7850 = 78.50 kg, so minimum quantity of steel required for 1m3 concrete slab is 78.50 Kg.

How do you calculate percentage of concrete in steel?

Calculate the percentage of reinforcement with the formula P = 8.33UA/t, where P is the percentage and t is the thickness. For example, the percentage of reinforcement of a 30-inch slab with two layers of No. 6 rebar spaced 4 inches on center is P = 8.33_6_0. 43/30 = 0.72 percent.

How much steel is RCC slab?

Thumb rule for Steel required for RCC slab is 80 kgs/m3, then quantity of steel required for 100 sq ft ( 1.18 m3) rcc slab is equal to = 80 × 1.18 = 94.5 Kgs. Ans. :- 94.5 Kgs steel quantity are required for 100 sq ft 5 inch thick rcc roof slab.

What is the cost of RCC slab per sq ft?

Cost of RCC Slab for 2000 sft, 5” thick and cement concrete 1;2;4 proximate cost is Rs 3 lac (or Rs 150/SFT) including material, labor and MS steel bars.

Which steel is best for slab?

TMT Steel or TMX steel is the best bet for house construction. They are the latest generation of reinforcement steel (high-strength and ductile than their predecessors) . They are graded as Fe415, Fe500, Fe500D, Fe550 i.e. yield strength of 415, 500 and 550 N/ sq mm respectively . Higher grade are also available.

How do you calculate kg of steel?

HOW TO CALCULATE STEEL WEIGHT IN KG

1. Weight of bar in kg/meter should be calculated as (d2 ÷ 162) where’d’ is the diameter of bar in mm.
2. ‘L’ for column main steel in footing should be considered as minimum 30cm/as specified.
3. For bent up bar add 0.42d in straight length of bar where’d’ is the clear depth of beam/slab.

What is weight of 12mm steel rod?

Calculate the weight of the TMT rods in bundles as per size.

TMT Size	TMT Rods Per Bundle	TMT Weight Per Bundle
8mm (1 Bundle)	10	47 Kg
10mm (1 Bundle)	7	53 Kg
12mm (1 Bundle)	5	53.4 Kg
16mm (1 Bundle)	3	56.88 Kg

What is the weight of steel per Metre?

Weight of steel bars per meter – Weight of steel bars formula

Diameter of bars in millimeter	Weight of bars in kilogram
12 mm	0.89 kg/meter
16 mm	1.58 kg/meter
20 mm	2.469 kg/meter
25 mm	3.858 kg/meter

Is Code A TMT?

IS:1786-2008:Specification for High strength deformed steel bars and wires for concrete reinforcement. IS:2502-1963: Code of practice for bending & fixing of bars for concrete reinforcement. IS:2751 -1998: Recommended practice for welding of mild steel plain & deformed bars for reinforced construction.