超高強水泥基灌漿料配制試驗研究
發(fā)布時間：2018-09-02 09:55
【摘要】：灌漿料是由水泥、外加劑（減水劑、膨脹劑、早強劑、消泡劑等）、集料和礦物摻合料等材料拌合在一起的干混料，加水攪拌后，，具有高流動性、高強度和微膨脹等特點，因此灌漿料得到了更加廣泛的應用。 近些年裝配式鋼筋混凝土結構成為我國建筑結構發(fā)展的重要方向之一，裝配式混凝土結構的節(jié)點連接對灌漿料的強度要求較高。針對灌漿料強度的問題，研究了灌漿料各組成材料在不同摻量的情況下，對灌漿料流動度和強度等性能的影響。將普通硅酸鹽水泥與硫鋁酸鹽水泥進行復配，得到兩者的最佳摻量（3:7），可明顯改善灌漿料的流動性能，提高灌漿料的強度。通過在灌漿料中加入一定量的硅灰，可明顯減少灌漿料表面的氣泡，改善灌漿料的表面狀態(tài)。通過改變灌漿料中標準砂的摻量，研究其對灌漿料的性能影響，將標準砂換成石英砂，進一步研究石英砂摻量對灌漿料的性能影響，并配制出1d抗壓強度達到40MPa、28d抗壓強度達到100MPa的灌漿料。 通過以上試驗得到各組成材料的摻量后，通過正交試驗進一步優(yōu)化配合比。選取狀態(tài)良好、強度高等性能良好的灌漿料進行耐久性能試驗，試驗結果表明配制的灌漿料具有良好的耐堿性能和耐硫酸鹽性能。 最后對灌漿料微觀性能進行研究。從微觀方面分析出灌漿料的主要水化產物是鈣礬石和水化硅酸鈣，以及灌漿料不同齡期強度變化的原因，為超高強水泥基灌漿料的應用提供理論依據。
[Abstract]:The grouting material is a dry mixture mixed with cement, admixture (water reducer, expander, early strength agent, defoamer, etc.), aggregate and mineral admixture, etc. After mixing with water, it has the characteristics of high fluidity, high strength and micro expansion. Therefore, the grouting material has been more widely used. In recent years, the fabricated reinforced concrete structure has become one of the important directions of the development of the building structure in China. The joint connection of the fabricated concrete structure requires high strength of the grouting material. In view of the problem of grouting material strength, the influence of the composition of grouting material on the fluidity and strength of grouting material was studied. The optimum dosage (3:7) of ordinary Portland cement and sulphoaluminate cement is obtained, which can obviously improve the fluidity of grouting material and the strength of grouting material. By adding a certain amount of silica fume to the grouting material, the bubble on the surface of the grouting material can be obviously reduced and the surface state of the grouting material can be improved. By changing the content of standard sand in grouting material, the effect of standard sand on the performance of grouting material is studied, and the standard sand is replaced by quartz sand, and the effect of the content of quartz sand on the performance of grouting material is further studied. The grouting material with 1d compressive strength up to 40MPa / 28d and 100MPa was prepared. The mixture ratio was optimized by orthogonal test after the content of each component material was obtained through the above experiments. The results show that the grouting material has good alkali resistance and sulfate resistance. Finally, the microscopic properties of grouting materials are studied. The main hydration products of the grouting materials are ettringite and calcium silicate hydrated, and the reasons for the change of the strength of the grouting materials at different ages are analyzed from the microscopic point of view, which provides a theoretical basis for the application of ultra-high strength cement based grouting materials.
【學位授予單位】：河北聯合大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU578
本文編號：2219006
[Abstract]:The grouting material is a dry mixture mixed with cement, admixture (water reducer, expander, early strength agent, defoamer, etc.), aggregate and mineral admixture, etc. After mixing with water, it has the characteristics of high fluidity, high strength and micro expansion. Therefore, the grouting material has been more widely used. In recent years, the fabricated reinforced concrete structure has become one of the important directions of the development of the building structure in China. The joint connection of the fabricated concrete structure requires high strength of the grouting material. In view of the problem of grouting material strength, the influence of the composition of grouting material on the fluidity and strength of grouting material was studied. The optimum dosage (3:7) of ordinary Portland cement and sulphoaluminate cement is obtained, which can obviously improve the fluidity of grouting material and the strength of grouting material. By adding a certain amount of silica fume to the grouting material, the bubble on the surface of the grouting material can be obviously reduced and the surface state of the grouting material can be improved. By changing the content of standard sand in grouting material, the effect of standard sand on the performance of grouting material is studied, and the standard sand is replaced by quartz sand, and the effect of the content of quartz sand on the performance of grouting material is further studied. The grouting material with 1d compressive strength up to 40MPa / 28d and 100MPa was prepared. The mixture ratio was optimized by orthogonal test after the content of each component material was obtained through the above experiments. The results show that the grouting material has good alkali resistance and sulfate resistance. Finally, the microscopic properties of grouting materials are studied. The main hydration products of the grouting materials are ettringite and calcium silicate hydrated, and the reasons for the change of the strength of the grouting materials at different ages are analyzed from the microscopic point of view, which provides a theoretical basis for the application of ultra-high strength cement based grouting materials.
【學位授予單位】：河北聯合大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TU578
【參考文獻】
相關期刊論文 前10條
1 武華薈;劉寶舉;;硅酸鹽水泥水化機理研究方法[J];粉煤灰;2009年01期
2 米承勇;王道平;何智海;;超細水泥灌漿材料的研究與發(fā)展[J];粉煤灰綜合利用;2008年06期
3 馬振華,簡淼夫,金春祥;光透法測定水泥細度的研究[J];硅酸鹽通報;1994年02期
4 閻培渝;張慶歡;;含粉煤灰或石英粉復合膠凝材料的抗壓強度發(fā)展規(guī)律[J];硅酸鹽學報;2007年03期
5 郭蕾;魯統(tǒng)衛(wèi);谷強;劉志國;;用高性能灌漿劑配制灌漿材料的性能與工程應用研究[J];工業(yè)建筑;2007年09期
6 陳富銀;游寶坤;;無收縮超早強灌漿劑的性能及其應用[J];中國建筑材料科學研究院學報;1991年02期
7 郭路;鄧青;;普通硅酸鹽水泥配制水泥基灌漿料的實驗研究[J];江西建材;2008年02期
8 譚進奎;高強無收縮灌漿料在建筑物結構加固中的應用[J];山西建筑;2005年23期
9 胡世友;朱治國;梁雪琴;茹文明;;UGM灌漿料在設備安裝二次澆注層中的應用[J];建材技術與應用;2009年06期
10 俞然剛,陳金平;微膨脹高性能灌漿材料研究及應用[J];石油工程建設;2005年02期
相關碩士學位論文 前1條
1 汪劉順;高性能鐵尾礦砂水泥基灌漿料耐久性及微觀結構試驗研究[D];合肥工業(yè)大學;2012年
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