Elavenil S

Civil

School of Civil Engineering

Chennai Campus

S. MuraliKrishnan

T.Felix Kala

P.Asha

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

International Journal of ChemTech Research

The atmost issue related to excess consumption of cement is the emission of CO2 and other greenhouse gases ultimately leading to environmental degradation. Global warming being the need of hour and which in turn has made the world’s industrialists to make efforts underway to enhance eco-friendly construction materials, conserving the rapid exhaust of natural non-renewables. A study reveals, the annual emission rate of carbonate burns in cement industries contributes around five to eight percent of the world’s greenhouse gas emissions and also it has become the second largest consumable next to water. Assessing the current scenario, polymer based concrete, Geopolymer concrete (GPC) is a latest innovation in the construction sector and an environment friendly construction material obtainedas a result of polymerization chainreaction of inorganic molecules. Also, demand for river sand has gone in great hike and ultimately become costlier and scarce in availability on account of various acts and legislations confronting illegal dredging of the same. Environmental &amp; economy aspects are better obtained, if locally available sources can be used, which aids in minimizing the cost. In such a case the manufactured sand (MS) is an economic alternative to river sand in concrete. The ultimate objective of this thesis paper is to assess the properties of flyash based Geopolymer concrete by using manufactured sand as fine aggregate. © 2019 Elsevier Ltd. All rights reserved.

Materials Today: Proceedings

Investigation OnCompressive Strength Development Of Geopolymer Concrete Using Manufactured Sand

In recent years, the use High Performance Concrete (HPC) has increased in construction industry. The ingredients of HPC depend on the availability and characteristics of suitable alternative materials. Those alternative materials are silica fume and manufactured sand, a by products from ferro silicon and quarry industries respectively. HPC made with silica fume as partial replacement of cement and manufactured sand as replacement of natural sand is considered as sustainable high performance concrete. In this present study the concrete was designed to get target strength of 60 MPa as per guide lines given by ACI 211-4R (2008). The laboratory study was carried out experimentally to analyse the axial behavior of reinforced cement HPC column of size 100×100×1000mm and square in cross section. 10% of silica fume was preferred over ordinary portland cement. The natural sand was replaced by 0, 20, 40, 60, 80 and 100% with Manufactured Sand (M-Sand). In this investigation, totally 6 column specimens were cast for mixes M1 to M6 and were tested in 1000kN loading frame at 28 days. From this, Load-Mid height deflection curves were drawn and compared. Maximum ultimate load carrying capacity and the least deflection is obtained for the mix prepared by partial replacement of cement with 10% silica fume &amp; natural sand by 100% M-Sand. The fine, amorphous and pozzalonic nature of silica fume and fine mineral particles in M-Sand increased the stiffness of HPC column. The test results revealed that HPC can be produced by using M-Sand with silica fume. © Published under licence by IOP Publishing Ltd.

Fulltext

IOP Conference Series: Materials Science and Engineering

Experimental investigation on high performance RC column with manufactured sand and silica fume

Properties of Concrete using Manufactured Sand as Fine Aggregate

Journal	International Journal of ChemTech Research
Publisher	Sai Scientific Communications
ISSN	0974-4290
Open Access	0