建材世界
建材世界
건재세계
THE WORLD OF BUILDING MATERIALS
2014年
6期
47-50
,共4页
朱建在%荆汝林%邱河梅%成斌%朱教群%周卫兵%孙正
硃建在%荊汝林%邱河梅%成斌%硃教群%週衛兵%孫正
주건재%형여림%구하매%성빈%주교군%주위병%손정
改性石墨粉%蓄热混凝土%制备%性能
改性石墨粉%蓄熱混凝土%製備%性能
개성석묵분%축열혼응토%제비%성능
modified graphite powder%heat storage concrete%preparation%performance
在前期研究的蓄热混凝土基础上,通过石墨粉改性前后混凝土的性能比较,研究改性石墨粉对蓄热混凝土性能的影响。研究表明,改性石墨粉可以降低混凝土的吸湿性,增加蓄热混凝土的工作性能和强度。由于改性石墨粉表面包覆一层 SiO2薄膜,降低了该混凝土的导热系数,但是降低幅度为8%,其导热系数为2.54 W/(m·K),仍然具有较好的导热性。
在前期研究的蓄熱混凝土基礎上,通過石墨粉改性前後混凝土的性能比較,研究改性石墨粉對蓄熱混凝土性能的影響。研究錶明,改性石墨粉可以降低混凝土的吸濕性,增加蓄熱混凝土的工作性能和彊度。由于改性石墨粉錶麵包覆一層 SiO2薄膜,降低瞭該混凝土的導熱繫數,但是降低幅度為8%,其導熱繫數為2.54 W/(m·K),仍然具有較好的導熱性。
재전기연구적축열혼응토기출상,통과석묵분개성전후혼응토적성능비교,연구개성석묵분대축열혼응토성능적영향。연구표명,개성석묵분가이강저혼응토적흡습성,증가축열혼응토적공작성능화강도。유우개성석묵분표면포복일층 SiO2박막,강저료해혼응토적도열계수,단시강저폭도위8%,기도열계수위2.54 W/(m·K),잉연구유교호적도열성。
On the basis of the previous studies,the graphite powder mixed into concrete was investigated in this pa-per.Effect of modified graphite powder on the performance of heat storage concrete were researched.This result indica-ted that the modified graphite powder can reduce the moisture absorption of concrete and increase the working perform-ance of regenerative concrete.Coated in a layer of SiO2 film,the modified graphite powder reduced the strength of con-crete and the coefficient of thermal conductivity.However,the coefficient of thermal conductivity was still up to 2.54 W/(m·K),which had a good application value.