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

Examine the state of stress at the junction of flange, Examine the state of...

Examine the state of stress at the junction of flange: A beam of I-section as shown in Figure (a) is subjected to a bending moment of 84.928 kN m and a shear force of 106.1 kN

Compare the values of active and passive earth pressures, A retaining wall ...

A retaining wall 12 metres high is proposed to hold sand. The values of void ratio and φ in the loose state are 0.63 and 30° whereas they are 0.42 and 40° in the dense state. Suppo

Calculate the hydrostatic force, The steel oil container shown in the figur...

The steel oil container shown in the figure has a circular lid centred on its sloping wall. The lid is hinged at A and held closed with a frictionless stopper at B. The lid is made

Purpose of tar in bituminous materials, Q. Purpose of tar in bituminous mat...

Q. Purpose of tar in bituminous materials? Tar is usually incorporated in bituminous materials due to the below reasons: (i)  Blending of tar with bitumen possesses better b

What is the required bracing location for the beam, A contractor has select...

A contractor has selected a W14x74 simply supported beam for a high rise construction project.  The span length for the provided beam is set at 30 feet.  The maximum factored appli

Process of installation of elastomeric bearing, The process of installation...

The process of installation of elastomeric bearing differs in case of precast vis-a-vis cast-in-situ girders. For precast girders, the bearing may be fixed to the underside of the

Moment, what is a couple?

what is a couple?

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