STUDY ON PROPERTIES OF POLYMER MODIFIED MORTARS USED AS REPAIR MATERIALS
Author(s):
Jais John , Mar Athanasius College of Engineering, Kothamangalam, Kerala; Sachin Paul, Mar Athanasius College of Engineering, Kothamangalam, Kerala
Keywords:
Polymer modified mortar(PMM), Styrene Butadiene Rubber(SBR), Acrylic polymer, Slant shear test, Split cylinder test, Epoxy bonding agent
Abstract:
The aim of this thesis work is to study the properties of certain polymers available in the market used for repair works of concrete structures. One SBR and one Acrylic based polymer have been selected for study. These polymers are added to mortar and used as polymer modified mortars (PMMs) for various applications. Compressive strength, flexural strength, bond strength and water permeability of these PMMs were studied. Water cement ratio was kept constant at 50%. Two sand/cement ratios of (1:3 and 1:2) were adopted. Polymer /cement ratios were varied as 5%, 10% and 15%. From the test results it was found that flexural strength and bond strength of Acrylic and SBR modified mortar improved. Water permeability of Acrylic and SBR modified mortar was much lesser than plain mortar. Bond strength with 15% polymer addition was comparable to that of bond strength of an epoxy based polymer bonding agent.
Other Details:
Manuscript Id | : | IJSTEV2I5035
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Published in | : | Volume : 2, Issue : 5
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Publication Date | : | 01/12/2015
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Page(s) | : | 52-57
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