What do you mean by ggbs – cement replacement, Civil Engineering

Assignment Help:

Q. What do you mean by GGBS – cement replacement?

From structural point of view GGBS replacement enhances higher durability, lower heat of hydration and higher resistance to sulphate and chloride attack when compared with normal ordinary concrete. Conversely it also contributes to environmental protection since it minimizes use of cement throughout the production of concrete. 

Though it is identified that there are still some hindrances which prevent the prevalence of its usage in local market. Theoretically speaking GGBS concrete suffers from lower rate of strength development that is highly sensitive to curing conditions. In this connection certain site measures have to be introduced to construction industry to ensure better quality of curing process in order to secure high quality of GGBS concrete. Along with designers have to be cautious of the potential bleeding problem of GGBS concrete.

Another main difficulty of extensive use of GGBS concrete lies in the little source of supply of GGBS. As Hong Kong isn't a major producer of steel and GGBS as a by-product of steel has to be imported overseas and this introduces higher material cost because of transportation and supply of GGBS is unsteady andunstable.


Related Discussions:- What do you mean by ggbs – cement replacement

Explain p trap, Q. Explain P Trap? Trap is a depressed or bent sanitary...

Q. Explain P Trap? Trap is a depressed or bent sanitary fittings which always remains full of water it is water seal. Its functions are to prevent passage of foul air or gas

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

Survey, 3-d figure of line ranger

3-d figure of line ranger

Difference between compaction and consolidation of soil, Briefly explain th...

Briefly explain the difference between compaction and consolidation of soil. What is the effect of compaction on soil properties? Ans.- Compaction - The process of increas

Irrigation, what is a balancing depth

what is a balancing depth

Hydraulics and Hydrology , A flow rate of 200 gpm of oil with u=1.5 x 10-3 ...

A flow rate of 200 gpm of oil with u=1.5 x 10-3 lb-sec/ft2 and p=1.7 slug/ft3 occurs in a 4-in pipe. Determine the Reynolds number. Classify the flow as laminar or turbulent. What

Calculate the elastic stretch of the steel wire rope, A 70-ft long, ¾" diam...

A 70-ft long, ¾" diameter, 6 x 7 FC wire rope is resisting a tension force of 12-kips.  The elastic stretch of the steel wire rope given the following properties is most nearly: E

Concrete compaction in piling works, Question What is the reason that v...

Question What is the reason that vibrators not used in concrete compaction in piling works ? Answer Concrete for piles must be a high-slump self-compacting mix that i

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