INVESTIGATION THE PHYSICAL AND STRENGTH CHARACTRIZATIONS OF LOCAL WHEAT HUSK ASH CONCRETE
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Date
2020-02-20
Journal Title
Journal ISSN
Volume Title
Publisher
Sebha University
Abstract
The objective of the study is to investigate the mechanical properties of high
strength concrete with different replacement levels of ordinary Portland cement by
Wheat Husk Ash. The standard cubes (30mm x 30mm x 30mm) were caste. The
compressive strength at 28 days has been obtained. The results of the mechanical
properties of the wheat husk ash at 28 days have shown quite encouraging and
interesting results at both wheat husk ash replacement 15% and 20% in the grade of
the concrete, with compressive strength enhancement about 16% and 11%
respectively.
Moreover, some other characterizations have been considered including,
chemically combined water (CCW), bulk density and apparent porosity. The results of
CCW showed that at 28 days of hydration the increase in the chemically combined
water content becomes less significance since the hydration process was al mostly
completed after 14 days of hydration. The bulk density decreases as the ash content
increases due to the relatively lower densities of the ash compared with Ordinary
Portland Cement (OPC). The apparent porosity behaves oppositely i.e., it increases as
the ash content increased.
Description
Keywords
ASH CONCRETE