It is the bearing capacity in N/mm2 when tested on 21 day on a hydraulic testing m/c When we tested this grade concrete cubes on 28th day the compressive strength value have to come 35 N/mm2.
concrete c35 - 1:1,5:2,5 (cement,sand,aggregate)
rades
The main difference between concrete grade C35 and C35A lies in their composition. C35 concrete is a standard concrete mix with a minimum strength of 35 megapascals (MPa), while C35A concrete is a special mix that includes air-entraining agents to improve workability and durability. The inclusion of air-entraining agents in C35A helps to increase the concrete's resistance to freeze-thaw cycles and reduce the risk of cracking. Overall, C35A is more suitable for applications where improved durability and workability are required.
how much tensile strength of M20 grade concrete at 28 Days
500psi
concrete c35 - 1:1,5:2,5 (cement,sand,aggregate)
rades
The main difference between concrete grade C35 and C35A lies in their composition. C35 concrete is a standard concrete mix with a minimum strength of 35 megapascals (MPa), while C35A concrete is a special mix that includes air-entraining agents to improve workability and durability. The inclusion of air-entraining agents in C35A helps to increase the concrete's resistance to freeze-thaw cycles and reduce the risk of cracking. Overall, C35A is more suitable for applications where improved durability and workability are required.
It is exactly 4351 psi but generally referred to as 4500 psi.
how much tensile strength of M20 grade concrete at 28 Days
500psi
3000 psi concrete weighs Approx 3900 Lb/yd3
st4 is just a standard type concrete probably comparable to c40 structural concrete, pav 2 is the equivalent to c35 concrete with air bubbles, mostly used in paving works
Concrete 3000 psi means that the concrete has a compressive strength of 3000 pounds per square inch (psi). This measurement indicates how much pressure the concrete can withstand before cracking or breaking. A higher psi value generally means stronger and more durable concrete.
If is standard concrete it is usually 3000 psi mix
3000 psi 3500?
C-40 concrete has a characteristic compressive strength of 40 MPa (megapascals). To convert this to psi (pounds per square inch), you can use the conversion factor where 1 MPa is approximately equal to 145.038 psi. Therefore, C-40 concrete is equivalent to about 5,800 psi.