本文選題：低熟料礦渣水泥 + 粒徑�。� 參考：《硅酸鹽通報》2017年05期

【摘要】：低熟料礦渣水泥(LSC)是一種水泥熟料用量低,主要由�；郀t礦渣和石膏組成的水硬性膠凝材料。本文研究水泥不同粒徑分布(對應比表面積分別為358 m~2/kg、450 m~2/kg和516 m~2/kg)對低熟料礦渣水泥的抗壓強度、電阻率和水化熱、水化產(chǎn)物、孔結構的影響。結果表明,當比表面積從358 m~2/kg增加到450 m~2/kg可以提高低熟料礦渣水泥漿體的抗壓強度,當從450 m~2/kg增加至516 m~2/kg時,強度提高甚微。低熟料礦渣水泥主要的水化產(chǎn)物是鈣礬石和水化硅酸鈣,增加水泥細度導致放熱速率明顯加快,電阻率變化曲線的下降段持續(xù)時間明顯縮短,因而會產(chǎn)生更多的鈣礬石。水泥細度增加,漿體的凝膠孔的體積分數(shù)增大,大孔減少,進一步提高漿體的密實度。
[Abstract]:Low clinker slag cement (LSCC) is a kind of hydraulic cementitious material which is composed of granulated blast furnace slag and gypsum. In this paper, the effects of different particle size distribution of cement (corresponding specific surface area of 358mg / kg, 450 m~2/kg and 516mg / kg) on the compressive strength, resistivity, hydration heat, hydration product and pore structure of low clinker slag cement are studied. The results show that when the specific surface area is increased from 358 m~2/kg to 450 m~2/kg, the compressive strength of low clinker slag cement paste can be improved, and the strength of low clinker slag cement paste can be increased slightly when the specific surface area is increased from 450 m~2/kg to 516 m~2/kg. The main hydration products of low clinker slag cement are ettringite and calcium silicate hydrate. Increasing the fineness of cement leads to an obvious acceleration of heat release rate, and the duration of the falling section of resistivity change curve is shortened obviously, so more ettringite will be produced. With the increase of cement fineness, the volume fraction of gel pore increases and the macropore decreases, which further improves the compactness of slurry.
【作者單位】： 甘肅環(huán)通工程試驗檢測有限公司;
【分類號】：TQ172.1

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