EFFECT OF DIATOMITE，ULTRAFINE RICE HUSK ASH，AND SILICON ASH ON THE PERFORMANCE OF DUAL POROUS CONCRETE

Hu Weixin; Huang Wei; Qin Honggen

doi:10.13204/j.gyjz201410023

Volume 44 Issue 10

Jan. 2015

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Hu Weixin, Huang Wei, Qin Honggen. EFFECT OF DIATOMITE，ULTRAFINE RICE HUSK ASH，AND SILICON ASH ON THE PERFORMANCE OF DUAL POROUS CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(10): 113-116. doi: 10.13204/j.gyjz201410023

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Hu Weixin, Huang Wei, Qin Honggen. EFFECT OF DIATOMITE，ULTRAFINE RICE HUSK ASH，AND SILICON ASH ON THE PERFORMANCE OF DUAL POROUS CONCRETE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(10): 113-116. doi: 10.13204/j.gyjz201410023

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EFFECT OF DIATOMITE，ULTRAFINE RICE HUSK ASH，AND SILICON ASH ON THE PERFORMANCE OF DUAL POROUS CONCRETE

doi: 10.13204/j.gyjz201410023

Publish Date: 2014-10-30

Abstract

Abstract

Diatomite，ultrafine rice husk ash，and silicon ash are natural micro hole materials． Mixing them into porous slurry and dual porous lightweight aggregate concrete individually，the impact on the performance of dual porous concrete was studied． The results of research showed that the concrete was mixed with 10% of diatomite， ultrafine rice husk ash and silica fume micro porous materials，such as the quality was 10%，the concrete strength is increased by 26%， 11%， 2. 4% respectively． The insulation properties of concrete was improved at same time． When the air content in 10% to 15%，the strength of double porous concrete could be more than 20 MPa，the thermal conductivity was less than 0. 36 W/( m·K) ． For 240 mm thick concrete wall，the average heat transfer coefficient was less than 1. 5 W/( m·K) ，which can the requireinents of “Residential Building Energy Efficiency Design Standard of Hot Summer and Cold Winter Areas”( JGJ 134—2010) ．
- micro-nano hole,
- ceramsite,
- strength,
- air content,
- thermal conductivity,
- dual porous lightweightaggregate concrete

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