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Experimental Study on Geopolymer Motor with Marble Powder under High Temperature

Authors(2):

Chintapalli Prasanthi, T. Raja Sekhar
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Geopolymers belong to a range of inorganic polymeric materials formed by activating silica aluminium rich minerals. Silica-aluminium rich industrial wastes etc. are activated with alkaline or alkaline-silicate solution at ambient or higher temperature to get Geopolymers. Geopolymerisation involves a number of processes such as dissolution, diffusion, polycondensation, and hardening. Optimization of such a complex system requires systematic study of several synthesizing parameters as well as of their interactions, which are extremely important issues for a geopolymer. Secondly, marble powder from different sources show different level of reactivity under specific geopolymer synthesis conditions and consequently affects the final properties. Hence, for manufacturing high performance geopolymer binder from marble powder, it is necessary to understand the effects of a various synthesis parameters and their relationship with mechanical properties and microstructure. The geopolymer mix composition is normally controlled by adjusting alkali and silicate content of activating solution. The SiO2 /Na2O ratio is an extremely important parameter which has major influence on physical and mechanical properties as well as on its microstructure. In the present study, an attempt has been made to study overall performance of geopolymer composites. Percentage of Na2O was taken 8 % and 10 %. SiO2 / Na2O ratio was varied from 1 to 1.6. Sand to marble powder ratio was kept 2:1, 1:1, and 1:2. Curing temperature and curing time were 800C and 72 hours respectively. After seven days, specimens were heated in Kiln at 2000C, 4000C, and 5500C for four hours and then kept in air for cooling. The effect of various synthesizing parameters at different temperature exposure on different properties such as Workability, Weight loss, Compressive strength, Sorptivity, Bulk density, Water absorption, Apparent porosity & Surface texture have been studied and the results were presented in the graphical and tabular form. It was observed that the geopolymer mortar is quite temperature resistant up to 5500C and remains dimensionally stable. However, some reduction in compressive strength was observed.

Chintapalli Prasanthi, T. Raja Sekhar

Compressive Strength, Water Absorption, Dry Density.

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Publication Details

Published in : Volume 3 | Issue 3 | May-June - 2017
Date of Publication Print ISSN Online ISSN
2017-06-30 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
249-254 IJSRSET173364   Technoscience Academy

Cite This Article

Chintapalli Prasanthi, T. Raja Sekhar , "Experimental Study on Geopolymer Motor with Marble Powder under High Temperature", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 3, pp.249-254, May-June-2017.
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