膨胀珍珠岩因其高吸湿性而不宜用在气候潮湿地区的建筑物外保温工程中.以膨胀珍珠岩为参照,研究了旨在减少膨胀珍珠岩吸水吸湿性而开发的膨胀玻化微珠的微观结构和吸湿性能.研究结果表明,膨胀玻化微珠因其表层外壳易破碎而不完全呈闭孔状.膨胀玻化微珠与膨胀珍珠岩有相近的比表面积、孔容积及相似的等温吸湿曲线.但膨胀玻化微珠因其微孔数量略多于膨胀珍珠岩而呈现出略大的吸湿性和较快的吸湿速率.
参考文献
| [1] | Ramazan Demirboga;Rustem Gul .The effects of expanded perlite aggregate, silica fume and fly ash on the thermal conductivity of lightweight concrete[J].Cement and Concrete Research,2003(5):723-727. |
| [2] | Uysal Habib;Demirbogbrevea Ramazan et al.The effects of different cement dosages,slumps,and pumice aggregate ratios on the thermal conductivity and density of concrete[J].Cement and Concrete Research,2004,34:845. |
| [3] | Ramazan Demirboga;Ruestem Guel .Thermal conductivity and compressive strength of expanded perlite aggregate concrete with mineral admixtures[J].Energy and buildings,2003(11):1155-1159. |
| [4] | Gündüz L;Ugur I .The effects of different fine and coarse pumice aggregate/cement ratios on the structural conerete properties without using any admixtures[J].Cement and Concrete Research,2005,35:1859. |
| [5] | Choi Yon Wang;Kim Yong Jie;Shin Hwa Cheol et al.An experimental research on the fluidity and mechanical properties of high-strength lightweight self-compacting concrete[J].Cement and Concrete Research,2006,36:1595. |
| [6] | Ramazan Demirboga;Ibrahim Orung;Rustem Gul .Effects of expanded perlite aggregate and mineral admixtures on the compressive strength of low-density concretes[J].Cement and Concrete Research,2001(11):1627-1632. |
| [7] | Chi J M;Huang R;Yang C C et al.Effect of aggregate properties on the strength and stiffness of lightweight concrete[J].Cement and Concrete Composites,2003,25:197. |
| [8] | Khandaker M. Anwar Hossain .Properties of volcanic pumice based cement and lightweight concrete[J].Cement and Concrete Research,2004(2):283-291. |
| [9] | Bashir M Suleiman .Moisture effect on thermal conductivity of some major elements of a typical Libyan house envelope[J].Journal of Physics D:Applied Physics,2006,39:547. |
| [10] | Blanco F;Gareia P;Mateos P et al.Charaeteristies and properties of lightweight concrete manufactured with cenospheres[J].Cement and Concrete Research,2000,30:1715. |
| [11] | Belal Dawoud;Yuri Aristov .Experimental study on the kinetics of water vapor sorption on selective water sorbents, silica gel and alumina under typical operating conditions of sorption heat pumps[J].International Journal of Heat and Mass Transfer,2003(2):273-281. |
| [12] | 严继名;张启元.吸附与凝聚--固体的表面与孔[M].北京:科学出版社,1979:112. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%