不同火山灰质材料的火山灰反应效益研究
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摘要
主要研究火山渣的火山灰反应效益,并与粉煤灰及矿渣进行了对比。结果表明,3 d时火山渣对水泥砂浆体系的强度没有贡献,28 d、90 d、180 d时对强度有贡献,但贡献小于硅酸盐水泥;3 d、28 d、90 d、180 d时粉煤灰对水泥砂浆体系的强度有贡献,但贡献小于硅酸盐水泥;3 d时矿渣粉对水泥砂浆体系强度的贡献小于硅酸盐水泥,28 d、90 d、180 d时对强度的贡献大于硅酸盐水泥。随着火山渣细度增加及水化龄期的延长,火山渣的火山灰反应效益呈增大趋势。
In this paper,the effect of pozzolanic reaction of scoria was studied,and compared with fly ash and blast furnace slag. The results show that scoria has no contribution to the strength of cement mortar at 3 d,the contribution of scoria is lower than that of Portland cement for the cement mortar strength at 28 d,90 d and 180 d. The contribution of fly ash is lower than that of Portland cement for the cement mortar strength at 3 d,28 d,90 d and 180 d. The contribution of blast furnace slag is lower than that of Portland cement for the cement mortar strength at 3 d,while the contribution of blast furnace slag is larger than that of Portland cement for the cement mortar strength at 28 d,90 d and 180 d. With the increase of fineness or hydration ages of scoria,the effect of pozzolanic reaction of scoria increased.
In this paper,the effect of pozzolanic reaction of scoria was studied,and compared with fly ash and blast furnace slag. The results show that scoria has no contribution to the strength of cement mortar at 3 d,the contribution of scoria is lower than that of Portland cement for the cement mortar strength at 28 d,90 d and 180 d. The contribution of fly ash is lower than that of Portland cement for the cement mortar strength at 3 d,28 d,90 d and 180 d. The contribution of blast furnace slag is lower than that of Portland cement for the cement mortar strength at 3 d,while the contribution of blast furnace slag is larger than that of Portland cement for the cement mortar strength at 28 d,90 d and 180 d. With the increase of fineness or hydration ages of scoria,the effect of pozzolanic reaction of scoria increased.
引文
[1]夏京亮,高波,周永祥,等.非洲天然火山灰混凝土抗氯离子渗透性能改善研究[J].混凝土,2017(11):19-22,26.
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[8]张立霞,王恩实,李哲.新型火山渣混凝土性能研究[J].吉林建筑工程学院学报,2009,26(1):9-12.
[9]张磊蕾,王武祥,陈晋栋,等.A10级火山渣发泡混凝土制备复合自保温砌块的研究[J].工业建筑,2017,47(增刊):630-634.
[10]张磊蕾,王武祥,陈晋栋,等.利用火山渣发泡混凝土制备实心自保温砌块的研究[J].硅酸盐通报,2018,37(1):315-320.
[11]张磊蕾,王武祥,王爱军,等.A09级火山渣发泡混凝土及复合砌块研究[J].新型建筑材料,2018(1):129-132.
[2]夏京亮,冯云龙,周永祥,等.肯尼亚天然火山灰质材料对混凝土收缩和徐变的影响[J].路基工程,2017(5):1-4.
[3]唐晶晶,丁立金,夏京亮,等.非洲火山灰质材料在大体积混凝土中的应用[J].混凝土,2016(9):153-157.
[4]沈玉山,温欣岚,夏京亮,等.非洲磨细天然火山灰对混凝土收缩抗裂性能的影响研究[J].建筑科学,2017,33(3):46-50.
[5] Turanli L,Uzal B,Bektas F.Effect of large amounts of natual pozzolan addition on properties of blended cements[J].Cement and Concrete Research,2005,35(6):1106-1111.
[6] Uzal B,Turanli L.Studies on blended cements containing a high volume of natural pozzolans[J].Cement and Concrete Researrch,2003,33(11):1777-1781.
[7] Al-Fadala S,Chakkamalayath J,Al-Bahar S,et al.Significance of performance based specifications in the qualification and Characerization of blended cement using volcanic ash[J].Construction and Building Materials,2017,144:532-540.
[8]张立霞,王恩实,李哲.新型火山渣混凝土性能研究[J].吉林建筑工程学院学报,2009,26(1):9-12.
[9]张磊蕾,王武祥,陈晋栋,等.A10级火山渣发泡混凝土制备复合自保温砌块的研究[J].工业建筑,2017,47(增刊):630-634.
[10]张磊蕾,王武祥,陈晋栋,等.利用火山渣发泡混凝土制备实心自保温砌块的研究[J].硅酸盐通报,2018,37(1):315-320.
[11]张磊蕾,王武祥,王爱军,等.A09级火山渣发泡混凝土及复合砌块研究[J].新型建筑材料,2018(1):129-132.