Effects on Strengths of Cement Mortar When Using Incinerator Bottom Ash as Fine AggregateReportar como inadecuado




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The main purpose of this paper is to study thefeasibility of using the Incinerator bottom ash fine aggregate to replacenatural fine aggregate in the cement mortar products. The research adopts highcement content mortar to conduct the experiment, in which the weight ratio ofcement-aggregate is 1-2. The experiment uses Incinerator bottom ash fineaggregates, which passes through #16 sieve, and natural sand of the same sizeas the aggregate, and separates mortar specimens in- to two main categoriesbased on different W-C ratio. Moreover, different proportions of furnace slagand F-class are used to replace a portion of cement so as to explore theinfluence on strength of Incinerator bottom ash aggregates mortar by adding thetwo admixtures. The study shows that, based on the 1:2 cement-aggregate weightratio, Incinerator bottom ash fine aggregates mortar, unit weight around 1.8g-cm3, is 20% lighter natural fine aggregate mortar, unit weight around 2.2g-cm3. The Incinerator bottom ash fine aggregates mortar can only reach 60%-70%the compressive strength of natural fine aggregates mortar. Direct tensilestrength and flexural tensile strength tests are 15% and 30% of compressivestrength respectively, due to the irregular strength development, which doesnot follow general concepts, such as low W-C ratio and mineral admixtureswill not necessarily help in strength development in Incinerator bottom ashfine aggregates mortar.

KEYWORDS

Incinerator Bottom Ash Aggregrate, Mineral Admixture, Cement Mortar

Cite this paper

Yang, M. , Wang, H. and Wang, H. 2014 Effects on Strengths of Cement Mortar When Using Incinerator Bottom Ash as Fine Aggregate. World Journal of Engineering and Technology, 2, 42-47. doi: 10.4236-wjet.2014.23B007.





Autor: Min-Jen Yang, Hong-Yu Wang, Hong-Yu Wang

Fuente: http://www.scirp.org/



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