International Journal of Materials Engineering and Technology
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Abstract: Different doses (1, 2, 3, 4
and 5%) of methylmethacrylate and ethylenediamine were added to ordinary Portland
cement to study their effect on its cementing properties (consistency, setting
time, bulk density, apparent porosity, crushing strength and hydration behavior,
i.e., combined water at different curing times; 3, 7 and 28 days). The results
indicated that methylmethacrylate acts as a setting retarder with increasing the
consistency, it has a negative effect on bulk density, apparent porosity,
crushing strength and hydration properties, however, when present in limited
content (not more than 2%) its negative effect is relatively slight. On the
other hand, ethylenediamine acts as a water reducing and setting accelerator
agent, its addition up to 3% results in a remarkable improvement in the
above-mentioned properties.
Keywords and phrases: cement, additives, hydration, strength, methylmethacrylate, ethylenediamine.
