本文選題：堿渣 + 元明粉��； 參考：《硅酸鹽通報(bào)》2017年04期

【摘要】：以堿渣與粉煤灰、元明粉混合制成路堤填墊用堿渣拌合土,通過多種物理與力學(xué)性能試驗(yàn)對(duì)比分析元明粉的影響與拌合土的工程特性。結(jié)果表明:堿渣與粉煤灰混合后不同齡期的界限含水率和顆粒分析結(jié)果證實(shí)了兩者之間存在化學(xué)作用;元明粉與堿渣中的Ca(OH)_2和CaCl_2發(fā)生瞬時(shí)化學(xué)反應(yīng),生成NaOH和CaSO_4;粉煤灰受堿激發(fā)生成多種凝膠物質(zhì)充填固體顆粒孔隙,提高土體結(jié)構(gòu)膠結(jié)性;元明粉使堿渣拌合土的力學(xué)性能得到顯著提高,且在摻量為0%~8%范圍內(nèi),拌合土力學(xué)性能隨著摻量增大呈現(xiàn)增大趨勢(shì);但拌合土抗凍性能差,建議加入少量水泥或NaOH活性劑來改善。
[Abstract]:The soil mixed with alkali slag, fly ash and powder for embankment filling was made. The influence of the powder and the engineering characteristics of the mixed soil were compared and analyzed through a variety of physical and mechanical performance tests. The results show that there is chemical action between alkali slag and fly ash at different ages and the results of particle analysis, and the instantaneous chemical reaction of Ca(OH)_2 and CaCl_2 in alkali slag and Yuan Ming powder, and the results of particle analysis in different ages after mixing alkali slag and fly ash confirm the existence of chemical action between them. The formation of NaOH and Caso _ 4; the formation of a variety of gel materials to fill solid particle pores and improve the structural cementation of soil by fly ash under alkali excitation; the mechanical properties of alkaline slag mixing soil are significantly improved by Yuan Ming powder, and within the range of 0% to 8%, The mechanical properties of mixed soil increased with the increase of content, but the frost resistance of mixed soil was poor, so it was suggested to add a small amount of cement or NaOH active agent to improve it.
【作者單位】： 河北工業(yè)大學(xué)土木與交通學(xué)院;河北省土木工程技術(shù)研究中心;
【基金】：河北省科技計(jì)劃項(xiàng)目(15273802D)
【分類號(hào)】：U416.12

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