Target strength = fck +(1.65*4)
What is this 4

Answer Posted / sjtbehera

ok fck is the 28 days compressive strength
s is the standard deviation
t is a static value

valu of s is M10 to M20=3.5
M20 to M35=4
M40 to M50=5.o

Is This Answer Correct ?    3 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What are the basic use of runners and standards of pipelines?

680


Will going from a 3-tap to 6-tap increase water pressure?

649


An interior designer designed a rack with the given dimensions. The dimensions are in feet. This coplanar frame repeats at every 5feet and constitute a space frame. The total length is 120feet. Which steel member will you suggest? A square bar, A square tube or a circular tube. Explain.

1553


i just want to know how much require sand and cement for 1 sq.mt including wastage. Please guide me as soon as possible. 

1415


What are the advantages of cad software?

655






How to calculate the cement consumption in RR Masonry in CM 1:8 for the foundation of Ground Level Reservoir

1034


Explain different types of rcc pipes.

700


How to do base isolation for RC framed structure using ETABS software?

3742


What is demising walls?

687


what is conventional shuttering rate per square feet of built up area? what is Mivan shuttering rate per square feet of built up area? what is coupler shuttering rate per square feet of built up area?

4462


What is unit weight of normal concrete?

674


How many pyramid in egypt?

635


what is the difference between np2 and np3 concrete mix

1558


Specific gravity of cement?

1206


if we use 1.25 bag of cement 3 pharma metal and 2 pharma crush sand what is the strenghtexpected for RCC column

1614