Experimental Investigations on Cement Replacement by GGBS in Concrete
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 3
Abstract
The concrete is probably the most extensively used construction material in the world with about six billion tones being produced every year. It is only next to water in terms of per-capita consumption. However, environmental sustainability is at stake both in terms of damage caused by extraction of raw material and CO2 emission during cement manufacture. This brought pressures on researchers for the reduction of cement by supplementary materials. These materials may be naturally occurring, industrial wastes or by product that are less energy intensive. These materials (called pozzoloans) when combined with calcium hydroxide, exhibits cementitious properties. Most commonly used pozzaloans are fly ash (FS), silica fume (SF), Ground granulated blast furnace slag (GGBS) and metakaolin (MK). This needs to examine the admixtures performance when blended with concrete so as to ensure a reduced life cycle cost. The present study reports the results of an experimental work, conducted to evaluate the strength characteristics study, compressive strength, flexural strength and modulus of elasticity of concrete. In durability study conventional and GGBS concrete is tested by conducting acid attack, sulphate attack and RCPT. The property of concrete made by partially replacing the cement by various % of GGBS such as 10%, 20%, 30%, 40% and 50% by volume in M30 grade of concrete. The experimental results revealed that GGBS 20% replacement concrete have 15% more compressive strength then conventional mix. The compressive strength of GGBS concrete were calculated at the curing age of 28, 56 and 90 days. thus the optimum replacement % is found to be 20% by the volume of cement.
Authors and Affiliations
P. Bhavani, Dr. B. Vidivelli
Keywords
Related Articles
- EP ID EP437919
- DOI 10.9790/1684-1503026170.
- Views 121
- Downloads 0
Welding Productivity Indicators: A critical analysis.
Welding is one of the main activities of the construction of process plants and one observes the use of several indicators in the monitoring of its productivity. In this article, the behavior of the welding productivity...
Implementationof Artificial Neural Network for Recognition of Factors InfluencingLabor Production Rates for Concreting Activities– A Review
Construction projects globally is considered to be multifaceted in nature. This complex work involves estimates of labor production rates during the planning as well as in the execution phase of the project. These estima...
Effect of Fire on Compressive Strength of Concrete
In the structural design of buildings, it is necessary to design the structure to safely resist exposure to fire. However it is usually necessary to guard against structural collapse for a given period of time. The colla...
Dispute Management Between Project Management Consultant And Civil Contractor
To manage the various kinds of construction projects, it requires how to deal with organizations. The Project management consultants has characteristic of Knowledge, Performance & Inter-personal Skills. The purpose of th...
Formulation, Manufacture And Characterisation Of The Resistivity Proprety Of Carbon Brush Using Palm Kernel Shell (Pks) As Source Carbon.
The manufacture of carbon brush (CB), a critical motor and generator component has been in existence for over a century in which various materials like: copper metal, graphite, retort coke, petroleum coke and other amorp...