what is silica fumes or micro silica? and whr is it used?
wat r its advantages?
- 10 Answers
- 23704 Views
- I also Faced
- E-Mail Answers
Answer Posted / suresh sathyavrithan
Silica fumes and microsilica both are same.This product is
manfactures from reduction of high purity quartz(sio2) with
coal in an electric arc furnace in the manufacture of
silicon or ferrosilicon alloy.it is 100 times finer than
cement.It can be used for high strength concrete as well as
durable concrete.
The use of Microsilica in conjuction with superplasticiser
has been achived high performance concrete. is more dense
and durable.As it is finer it can fill the pore spaces in
the concrete and could be achieved high resistance when
load will transmit.Also when the durablity will increase
chloride ion penetration from the water and soil can be
reduced and accordingly corrosion of reinforecment ceased.
| Is This Answer Correct ? | 26 Yes | 5 No |
Post New Answer View All Answers
how many running meters in one kilogram of 4mm pvc coated chainlink fencing
5. Two long boundary walls run parallel to each other at a center to center distance of 1 meter apart. The width and height of the first wall are 0.30 m and 2.5m respectively. While those of the second are respectively 0.18m and 3.5m. Plot the distribution of vertical stress intensity due to walls on a horizontal plane, 1m below ground level. The walls have negligible depth of foundation and are made of brick masonry (y = 19.2 kN/m cu)
can we find any technical issue if we are gong to change the dimensions of steel beams from one type to another type IE if there are any equievelant data base to find solution for problem of changeing sectios of beam from one type to another with the same cross sectional area.
if mineral admixture add into concrete then what is the differences between full cement concrete & fly ash added concrete of their SP. Gr.?and for the changes of SP. Gr. what is the changes in concrete
How do you compute moisture correction using the parameters gathered from Nuclear Density Gauge Apparatus and the moisture contents results from the lab.?
What is fineness modulus ? and its sieve # ?
which has high compressive strength between hollow block and brick masonry?
What do you meant by gui?
what is the metal ratio in granular subbase coarse for one cum ? And please explain the morth table ...what is the difference between grading 1 , 2, 3 what it means..plz explain
where will be the reinforcement of slab placed when there is an inverted beam and the bottom of the beam and slab are at same level ?
What is Density of cement, sand & aggregate ?
How much quantity of cement and sand required for the inlining of 610mm dia MS pipe 8.7mm thk.Inlining thickness is 10mm and CM ratio is 1:1.5.
pls send me interview question paper with answer of EIL/AAI/UPSC/RPSC because i am doing prepration of compitation exam of UPSC for the Asst. Executive Engineer
Why are separation membranes used between concrete pavement slab and sub-base?
What tor stands for in tor steel?
