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Using recycled glass and zeolite in concrete pavement to reduce heat island and heat crack

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Document pages: 8 pages

Abstract: Urban heat island effect is a building environmental problem related to pavement. It is hoped to reduce the high surface temperature of the pavement in summer to alleviate the UHI effect. Higher surface temperatures also affect the slab temperature difference (the upper surface temperature of the slab minus the lower surface temperature). The increase of concrete slab temperature difference leads to high possibility of concrete road cracking. The main purpose of this study is to reduce the surface temperature of concrete slab by using recycled glass as fine aggregate and zeolite as cement in concrete. Recycled glass shall be used instead of fine aggregate in the proportion of 10 , 20 and 30 of the total weight of aggregate. The proportion of zeolite replacing Portland cement is 10 and 30 , which is used for three different proportions of recycled glass Cncrete mixtures. Optimum proportions were determined by examining mechanical properties of samples and alkali-silica reactions. It was noticed that using recycled glass and zeolite together in concrete reduces pavement surface temperature and temperature gradient in summer.

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