建筑垃圾再生微粉基本材性及对水泥胶砂性能的影响
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摘要
为探索建筑垃圾再生微粉用作掺合料的可行性,制备了三种细度的废砖、废混凝土再生微粉,测试其物化性质,并研究不同组成、细度、掺量的再生微粉对水泥胶砂性能的影响。结果表明,组成对水泥胶砂性能影响不大,细度和掺量有较大影响;Ⅱ级再生微粉工作性较好、强度较高;掺量在20%以内对胶砂流动性的降低并不明显,且抗压、抗折强度比分别在85%、75%以上。
In order to explore the feasibility of using recycled powder as admixture,waste bricks and waste concrete recycled powder were prepared in three kinds of fineness. The physicochemical properties were tested and the effects of different compositions, fineness and dosage of recycled powder on the performance of cement mortar were studied. The results show that the composition has little effect on the performance of cement mortar, and the fineness and dosage has great influence. The grade II recycled powder has better working performance and higher strength; the reduction of the fluidity of the mortar within 20% is not obvious, and the compressive and flexural strength ratios are above 85% and 75% respectively.
In order to explore the feasibility of using recycled powder as admixture,waste bricks and waste concrete recycled powder were prepared in three kinds of fineness. The physicochemical properties were tested and the effects of different compositions, fineness and dosage of recycled powder on the performance of cement mortar were studied. The results show that the composition has little effect on the performance of cement mortar, and the fineness and dosage has great influence. The grade II recycled powder has better working performance and higher strength; the reduction of the fluidity of the mortar within 20% is not obvious, and the compressive and flexural strength ratios are above 85% and 75% respectively.
引文
[1]刘志刚.利用废弃混凝土配制再生砂浆及对其和易性和强度的研究[D].乌鲁木齐:新疆大学,2014.
[2]陈家珑,高振杰,周文娟,等.对我国建筑垃圾资源化利用现状的思考[J].中国资源综合利用,2012,30(6):47-50.
[3]严金海,张霖,孙艺涵.基于化学方法的再生混凝土微粉改性研究[J].建材世界,2012,33(2):33-36.
[4]吴姝娴,左俊卿.再生微粉掺合料的制备及性能研究[J].山西建筑,2011,37(25):111-112.
[5]秋小安.再生混凝土微粉的性能及其国内外研究现状分析[J].科技信息,2009(18):252-252.
[6]孙丽蕊.再生微粉材性及其对再生制品影响的研究[D].北京:北京建筑工程学院,2012.
[7]马纯滔,宋建夏,王彩波,等.建筑垃圾再生微粉利用的试验研究[J].宁夏工程技术,2009(1):55-58.
[8]吕雪源.再生微粉的基本性能及应用[D].青岛:青岛理工大学,2009.
[2]陈家珑,高振杰,周文娟,等.对我国建筑垃圾资源化利用现状的思考[J].中国资源综合利用,2012,30(6):47-50.
[3]严金海,张霖,孙艺涵.基于化学方法的再生混凝土微粉改性研究[J].建材世界,2012,33(2):33-36.
[4]吴姝娴,左俊卿.再生微粉掺合料的制备及性能研究[J].山西建筑,2011,37(25):111-112.
[5]秋小安.再生混凝土微粉的性能及其国内外研究现状分析[J].科技信息,2009(18):252-252.
[6]孙丽蕊.再生微粉材性及其对再生制品影响的研究[D].北京:北京建筑工程学院,2012.
[7]马纯滔,宋建夏,王彩波,等.建筑垃圾再生微粉利用的试验研究[J].宁夏工程技术,2009(1):55-58.
[8]吕雪源.再生微粉的基本性能及应用[D].青岛:青岛理工大学,2009.