Abstract
Recycling of debris to obtain the recycled aggregates for sub-base materials in road construction is a foremost application to be promoted to gain economical and sustainable benefits. In this study, different types of demolition waste samples were subjected classification tests such as chemical tests, particle size distribution, compaction, California Bearing Ratio (CBR) test. The experimental work included fourteen samples at different weight were taken to determine the proportion of demolition waste subbase. The result of sampling tests were compared with the general specifications for roads and bridges (SORB/R6), it was f that the effect of SO3, gypsum and total soluble salt (TSS) parameter on the demolition waste subbase were low and the gradation of demolition waste subbase was class A. the California bearing ratio CBR value was 37% with maximum dry density 2035 kg/m3, in addition the average compaction test was 95.98%, whereas the optimum moisture content of the study materials was 8%.
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