Pumping for concreting works, Civil Engineering

Assignment Help:

Question
What are the key problems if use pumping for concreting works?

Answer
In pumping operation, force exerted by pumps have to overcome friction involving concrete and pumping pipes, weight of concrete and pressure head when placing concrete above pumps. In actuality, as only water is pump able, it is water in concrete that transfers force.

Major problems associated with pumping are effect of isolation and bleeding. To rectify these adverse effects proportion of cement is increased to improve cohesion sequentially to decrease segregation and bleeding. On other hand, the proper selection of aggregate grading helps to get better pump capability of concrete.

 


Related Discussions:- Pumping for concreting works

Explain the term- shrinkage of concrete, LOSS OF PRESTRESS DUE TO SHRINKAG...

LOSS OF PRESTRESS DUE TO SHRINKAGE OF CONCRETE We know that concrete shrinks in volume when it dries up. This volume reduction takes place in the form of reduction of all dime

Angle measurment, calculating included angle and bearing

calculating included angle and bearing

Return period for design situations, Question While design life will it...

Question While design life will it be same as return period for design situations ? Answer Design life means least duration a structure is accepted to last. Longe

Analysis and design Of Swimming Pool, Hi Sir I have a graduation project ...

Hi Sir I have a graduation project part (A) in this semester. I have chosen topic (Analysis and design of Swimming Pool). I got this project ready from friend so I want Presented

State the effect of friction for a straight tendon, State the effect of fri...

State the effect of friction for a straight tendon The length effect represents the effect of friction for a straight tendon due to slight imperfections of the duct. In practic

What is the station at point b, What is the station at Point B? SO...

What is the station at Point B? SOLUTION 3 Station at Point A = Sta 22+45  Station at Point B = (Sta 22+45) + 1028' = 2245'+1028' =3273'  = Sta 32+73

Storm water, what are the roles of civil engineers in storm water managemen...

what are the roles of civil engineers in storm water management

Solid mensuration, a street light is 15 ft directly above the curb. a 6 ft ...

a street light is 15 ft directly above the curb. a 6 ft man starts 10 ft down the street from the light and walks directly across the street which is 10 ft wide. when he reaches th

How to calculate the diameter of the footing, A circular footing rests on a...

A circular footing rests on a pure clay with qu = 270 kN/m 2 , at a depth of 1.8 m. Verify the diameter of the footing if it has to transmit a load of 720 kN. Suppose the bulk u

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd