a)tell density of steel , concrete, bricks , sand and
aggregates.? b) what is knife test for wooden doors ? c)
what is the meaning of term abrasion? what is tested in it?
d) why pile foundation is provided in BCS?e) By total
station what activities can be performed and on what
principle it works? f) what is creep?

Answer Posted / amoo abiodun

steel 7769kg/m^3, concrete 2400kg/m^3, bricks 1794kg/m^3,
sand 1600kg/m^3, aggregates 1922kg/m^3,
abrasion is wearing down or rubbing away by means of friction.
test in abrasion is loss of material through 1.7mm sieve.
pile foundation is use in bcs because of the mineral (montmorillonite)which has extensive shrinkage and swelling.
total station is use in measurement of horizontal, vertical angle, and slope distance. it work with principle of electic distance, measuement which based on measuring the difference between transmitted and reflected waves.
Creep when load act on a structural member stain develops that produces both compressive and tensile stresses. tensile stresses are resisted by steel and concrete takes all the compressive stresses.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is modular brick and it size

1175


what is diffrence between catchment area,watershed and basin?

2500


What do you mean by tolerance factor of concrete ?

2673


Use of coping on terrace wall and in 4" wall is compulsory or not ?

1103


How to Rectify deep crack formed on Brick Wall? Explain the method of rectify the defect?

6382






what is the difference between natural draught cooling tower and induced draught cooling tower

1827


Define the various stages of the project planning process in construction.

661


std penetration resistance in very stiff clays lies bet 2 & 4 4 & 8 8 & 15 15 & 30

1614


insted of bentonite we can use any alternate material in piling ?

1709


What is zoning permit?

696


What is the name of this multiplication factors ?

1712


1) write Short notes about Shellow & Deep well? 2) What is the full form of SPT & SMB? write short notes. 3) write short notes about efficiency of Riveted joint.

2251


Which percentage of carpet area use in plot area of office building.

1396


CAN V USE CRUSH SAND FOR CLAY BRICK MASONARY

733


why demand factor less then 1 ?

1773