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

Define role of diver in underwater inspection of bridge, Define Role of Div...

Define Role of Diver in Underwater Inspection of Bridge? Diver's role is primarily to point out a potential scour problem. The diver can use one of the following equipment to m

Pumping at joints in concrete carriageway, Q. Pumping at joints in concrete...

Q. Pumping at joints in concrete carriageway? Pumping at joints in concrete carriageway takes place in the presence of the below factors: (i)  Fine-grained subgrade (ii)

Concrete, What is compacting factor

What is compacting factor

Prismatic compass, what is the role of agate cape in prismatic compass?

what is the role of agate cape in prismatic compass?

Maintenance of concrete roads, Maintenance of Concrete Roads: The mai...

Maintenance of Concrete Roads: The main defects that show up in a concrete road are : (a) cracks (b) loss of sealant (c) spalling at joints (d) loss of texture

Tests on limestones, Tests on Limestones Practical tests are made on li...

Tests on Limestones Practical tests are made on lime stones to decide their suitability is following:     i.       Physical tests    ii.        Heat test    iii.

State the process to calculate the transmission length, State the process t...

State the process to calculate the Transmission Length It is the distance required at the end of a concrete member for developing the maximum tendon stress by bond.

Design an equalization basin with a safety factor, A storm occurs with rain...

A storm occurs with rain of varying intensity falling over a commercial area. The area has a combined sewer system. Two interceptor sewers direct flow to the wastewater treatment p

Dam, Check for stability in a dam

Check for stability in a dam

Explain about overhauling of level xing, Q. Explain about Overhauling of Le...

Q. Explain about Overhauling of Level xing? Each level crossing except those laid with PSC sleepers must be opened out and the condition of sleepers and fittings, rails and fas

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