what is the minimum compressive strength in 7 days for
m20,m25,m30
Answer Posted / vimal prajapati
in 7 dayas 70% min. compressive strength required
| Is This Answer Correct ? | 4 Yes | 12 No |
Post New Answer View All Answers
How to calculate volume of concrete & steel on tank foundation & ring wall ?
Elaborate advantages & disadvantages of using crusher dust instead of sand in rcc work.
For Wet Mix Mecadam design what is Optimum moisture content
I want to know the material required per Square foot in rcc roof i.e.Steel ,Cement,
Hi I had missed my mark list (first year-apr2003)how i search in my old mark details in internet and which web site? pl inform me in full details..
As per Kandal suggestions, we have implemented rolling starts on 140 (+/- 5) degrees and we kept 3 rollars to complete the rolling before falling 125 degrees and the Aggregate AIV is below 22. But When the DBM bed is being rolled 3rd high viabration, (Before 1 plain & low ,2 high Viabrations), the aggregate is getting sharp edge agg. projections are damaged. As the literature is said that, the VG-30 Grade having better control the temp. susceptibility than Penetration grade. if so we could not get this problem at site. But we are facing on site. let me know.
Mention different types of roof systems?
a) we have 30nos., 300mm dia, 4m length double under reamed piles.calculate excavation quantity.b) tell concrete qty. also.
how ratio is calculated for any grade of concrete. for e.g. sppose M20 requires(x;y:z) quantity of cememt sand and aggregate.
What are the strongest shapes in building?
How much quantity of rod binding work by a rod binder per day
How much qty of stone ; sand; cement in R/R stone masonry of 136 CUM
what is conrete grade ,how are depent on concrete grad and size of concrete?
I would like to get the formula How can i calculate the productivity of a mason in terms of brick laying and plaster. i have 6000 Sqmt of interlock laying work i want to calculate - how many masons required to do the job - in how many days can it be done - what will be the production rate in 8 hours shift/ per mason if i can get some excell sheet , it will really help me in my calculations
std penetration resistance in very stiff clays lies bet 2 & 4 4 & 8 8 & 15 15 & 30