![]() 239000004567 concrete Substances 0.000 title claims abstract description 219.238000010521 absorption reaction Methods 0.000 title claims abstract description 451.XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 702.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP2011-076916 external-priority Application filed by 国立大学法人横浜国立大学 filed Critical 国立大学法人横浜国立大学 Priority to CN201280016994.5A priority Critical patent/CN103460006B/en Priority to US14/008,819 priority patent/US9459192B2/en Priority to JP2013507793A priority patent/JP5880981B2/en Priority to EP12765746.8A priority patent/EP2693186A4/en Publication of WO2012133784A1 publication Critical patent/WO2012133784A1/en Links Inventor 暁 細田 林 和彦 Original Assignee 国立大学法人横浜国立大学 Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents WO2012133784A1 - Water absorption test method and water absorption test device for concrete surface This is true for 0.4, 0.45, 0.5, and 0.55 water cement ratios.WO2012133784A1 - Water absorption test method and water absorption test device for concrete surface Results also indicate that the natural aggregate concrete has less compressive strength, less porosity and higher water absorption compared to that of concrete made with crushed aggregate. Test results indicate that with proper selection of mix proportions and adequate compaction both aggregates can be used to produce concrete with ultimate compressive strength that is usually specified for most concrete structural applications. Natural aggregates are characterized as porous limestone rocks with high water absorption, low bulk specific gravity, excessively dusty degraded, and contain large quantities of very fine sand. Parameters involved were crushed washed aggregate, natural unwashed aggregate, and four different water cement ratios. This paper presents the results of an extensive experimental program which was carried out to study the influence of Riyadh area aggregates on the compressive strength, water absorption, and porosity of the concrete. ![]()
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