本文選題：填縫材料 + 苯丙乳液�。� 參考：《硅酸鹽通報》2017年09期

【摘要】：利用苯丙乳液、水泥、填料和助劑制備了聚合物水泥路面填縫材料(PCJS),并通過正交試驗的方法得出了液粉比、水泥比例以及填料種類三種因素對材料定伸粘結(jié)性、峰值應變、斷裂伸長率三個變形指標的影響規(guī)律。結(jié)果表明:PCJS的定伸粘結(jié)性隨著液粉比和水泥比例的增大而逐漸提高;滑石粉和重質(zhì)碳酸鈣均能改善PCJS的定伸粘結(jié)性;液粉比是影響PCJS峰值應變指標和斷裂伸長率指標的主要因素,并且隨著液粉比的增大,峰值應變和斷裂伸長率均增大;隨著水泥比例的增大,PCJS的峰值應變先減小后增大,斷裂伸長率呈現(xiàn)增大的趨勢;PCJS在加入重質(zhì)碳酸鈣這種填料后的峰值應變和斷裂伸長率相對較大;三種因素對PCJS的峰值應變指標的影響次序為:液粉比水泥比例填料種類,對斷裂伸長率指標的影響次序為:液粉比填料種類水泥比例;液粉比取1∶0.45、水泥比例取60%、填料種類選用重質(zhì)碳酸鈣時,PCJS的變形性能最佳。
[Abstract]:Polymer cement pavement joint filling material (PCJS) was prepared by using styrene-acrylic emulsion, cement, fillers and auxiliaries. By orthogonal test, three factors, such as the ratio of liquid to powder, the ratio of cement and the type of filler, were obtained for the bindability and peak strain of polymer cement pavement. The effect of three deformation indexes on elongation at break. The results showed that the elongation and adhesion of PCJS increased with the increase of the ratio of liquid to powder and cement ratio, and both talc and calcium carbonate could improve the stability of PCJS. The ratio of liquid to powder is the main factor affecting the peak strain index and elongation at break index of PCJS, and the peak strain and elongation at break increase with the increase of liquid-powder ratio, and the peak strain decreases first and then increases with the increase of cement ratio. The peak strain and elongation at break of PCJS increased after adding heavy calcium carbonate, and the order of influence of three factors on the peak strain index of PCJS was as follows: the ratio of liquid to powder was different from that of cement, and the maximum strain and elongation at break of PCJS were higher than that of cement filler, and the order of influence of three factors on the peak strain index of PCJS was as follows. The order of influence on elongation at break is as follows: ratio of liquid to powder to filler type cement, liquid to powder ratio to 1: 0.45, cement to cement ratio to 60. When filler type is heavy calcium carbonate, the deformation performance of PCJS is the best.
【作者單位】： 空軍工程大學機場建筑工程系;西北工業(yè)大學力學與土木建筑學院;
【基金】：國家自然科學基金(51378497) 陜西省青年科技新星項目(KJXX-81)
【分類號】：U414

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