Температурна залежність міцніснх показників бетону на основі композиційного цементу
Journal Title: Вісник Національного університету "Львівська політехніка". Серія "Теорія та практика будівництва" - Year 2016, Vol 0, Issue 844
Abstract
In the article physical and chemical analysis wasstudied the in fluence of zeolite-containing composite cement on the concrete hardening processes and its composition change sunderheating 1000 °С. The presence of blast furnace granulated slag and zeolite composite in cement increases the strength characteristics under heating to temperatures above 700 °С. This phenomenon occurs due to synthesis of fusible eutectics that fill the interstices, formed during clinker dehydration. As the result, the individual concrete pieces are being tied. Theincre ase of remaining durability of concreteis confirmed at his heating with in the limitsof temperatures 500–1000 °Сonthe 60–70 % а increase of the module of resiliency in 1,8 –2,0 times, that comparatively with a concrete on portlandcement. Compositions of sheeting are of fered on the basis of filled with mineral materials of polimetylfenilsyloksan for the increase of fire-resistance of concrete building constructions. Fire retardant coating applied to the surface by concrete paint technology. Coating’s feature is the slow temperature formation and the ability to perform fire-retardent features underheating to temperatures 1400 °С due to the formation of highsyloksan-silicate and syloksan-oxygen bonds. Was found fireproof coating increases residual strength concrete when heated to 1000 °С on 31 %.
Authors and Affiliations
M. Gyvlyud, V. -P. Parkhomenko, S. Braichenko
Keywords
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