水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2012年
5期
45-47,64
,共4页
稻壳混凝土%渠道衬砌%导热系数%保温效果分析
稻殼混凝土%渠道襯砌%導熱繫數%保溫效果分析
도각혼응토%거도츤체%도열계수%보온효과분석
rice husk concrete%canal lining%thermal conductivity%insulation effect analysis
渠道衬砌冻害已成为北方渠灌区生产实践中亟待解决的问题。而稻壳具有多孔性、低密度、低导热系数等特点，首次利用农业生产的废弃物——稻壳为骨料制备混凝土，通过试验研究了不同稻壳掺量混凝土的导热系数。结果表明：掺入稻壳后，混凝土的导热系数大幅度降低，约为同等级普通混凝土导热系数的14%～20％。通过对稻壳混凝土衬砌保温效果的分析表明：利用稻壳混凝土衬砌渠道，有助解决像陕西关中这类微寒地区渠道衬砌的冻胀破坏问题。
渠道襯砌凍害已成為北方渠灌區生產實踐中亟待解決的問題。而稻殼具有多孔性、低密度、低導熱繫數等特點，首次利用農業生產的廢棄物——稻殼為骨料製備混凝土，通過試驗研究瞭不同稻殼摻量混凝土的導熱繫數。結果錶明：摻入稻殼後，混凝土的導熱繫數大幅度降低，約為同等級普通混凝土導熱繫數的14%～20％。通過對稻殼混凝土襯砌保溫效果的分析錶明：利用稻殼混凝土襯砌渠道，有助解決像陝西關中這類微寒地區渠道襯砌的凍脹破壞問題。
거도츤체동해이성위북방거관구생산실천중극대해결적문제。이도각구유다공성、저밀도、저도열계수등특점，수차이용농업생산적폐기물——도각위골료제비혼응토，통과시험연구료불동도각참량혼응토적도열계수。결과표명：참입도각후，혼응토적도열계수대폭도강저，약위동등급보통혼응토도열계수적14%～20％。통과대도각혼응토츤체보온효과적분석표명：이용도각혼응토츤체거도，유조해결상협서관중저류미한지구거도츤체적동창파배문제。
The freezing damage prevention of canal lining has become one of the pressing problems which should be solved in the production and practice in north canal irrigation areas. The rice husk has the characteristics such as porosity, low density, low thermal conductivity and so on. In this study, the agricultural production waste-rice husk is used firstly as one of the materials in the production of concrete, and the apparent density and compressive strength under dif- ferent rice husk amounts of concrete are studied through experiments. The results show that after mixing with the rice husk, the thermal conductivity of concrete would reduce in large scale, and is about 14% -20% of common concrete's thermal conductivity. Through analyzing the insulation effect of the rice husk concrete lining, it is shown that the rice husk concrete would help to solve the frost-heave damage problem of the lining canal in the micro-cold area such as Guanzhong area in Shaanxi.
