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

Retaining wall, whether the wall has adequate sliding resistance

whether the wall has adequate sliding resistance

Maintenance of earth roads, Maintenance of Earth Roads: The main task...

Maintenance of Earth Roads: The main task in maintaining the earth road is to ensure that cross-section is intact and is free from rutting, depressions and corrugations, and

Find the settlement at the centre and at edge of the footing, A load of 300...

A load of 3000 kN is being taken by a square column footing. Side of the column is 3 m, footing rests on a silty soil with a Poisson's ratio = 0.3. Modulus of elasticity of the soi

Building classification, Why I is the missing after h and J is written in t...

Why I is the missing after h and J is written in the classification of building

Cantilever beam, The problem in the link below. ">http://www.expertsmind....

The problem in the link below. ">http://www.expertsmind.com/questions/plot-vertical-displacement-cantilever-beam-30134382.aspx#

Describe about the baur-leonhardt system, Describe about the Baur-Leonhardt...

Describe about the Baur-Leonhardt system The Baur-Leonhardt system is included in the third type of anchorages which work under the principle of looping tendon wires at the en

Concrete technology, material for formwork and their specifications

material for formwork and their specifications

Define hardness - chemical characteristics of water, Define Hardness - Chem...

Define Hardness - Chemical Characteristics of Water Caused by any polyvalent cations (mainly Calcium and Magnesium). Expressed as mg/l as CaCO 3 . Causes precipitates with soap

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