混掺纤维混凝土桥面铺装材料性能试验研究
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摘要
将玄武岩纤维和聚丙烯纤维以不同体积掺量分别进行单掺和混掺制备C60纤维混凝土,对纤维混凝土进行抗压强度、劈裂抗拉强度、抗折强度、冻融损伤、干燥收缩性能试验,记录不同龄期下相关性能指标的变化差异并与普通混凝土进行对比分析。结果表明,将玄武岩纤维和聚丙烯纤维混掺可以弥补单一纤维的不足,充分发挥两种纤维的不同优势,混掺纤维对混凝土劈裂抗拉强度和抗折强度的提升具有显著效果,纤维混掺可以削弱冻融损伤对混凝土抗压、抗折强度的不利影响,降低混凝土的干燥收缩变形。
C60 fiber concrete was prepared by mixing basalt fiber and polypropylene fiber with different volume single mixing and mixing, and the compressive strength, splitting tensile strength, flexural strength, freeze-thaw damage and drying shrinkage performance of fiber concrete were tested. The differences in the performance indicators of different ages were recorded and compared with those of ordinary concrete. The result shows that the blending of basalt fiber and polypropylene fiber can make up for the deficiency of single fiber, and give full play to the different advantages of the two fibers. The mixed fiber has a significant effect on the splitting tensile strength and flexural strength of concrete. The blending can weaken the adverse effects of freeze-thaw damage on concrete compressive strength and flexural strength,and reduce the drying shrinkage deformation of concrete.
C60 fiber concrete was prepared by mixing basalt fiber and polypropylene fiber with different volume single mixing and mixing, and the compressive strength, splitting tensile strength, flexural strength, freeze-thaw damage and drying shrinkage performance of fiber concrete were tested. The differences in the performance indicators of different ages were recorded and compared with those of ordinary concrete. The result shows that the blending of basalt fiber and polypropylene fiber can make up for the deficiency of single fiber, and give full play to the different advantages of the two fibers. The mixed fiber has a significant effect on the splitting tensile strength and flexural strength of concrete. The blending can weaken the adverse effects of freeze-thaw damage on concrete compressive strength and flexural strength,and reduce the drying shrinkage deformation of concrete.
引文
[1]刘秋阳.南通地区中小桥梁病害分析及其耐久性评估方法研究[D].南京:东南大学,2015.
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[12]王飞剑,张琦,杜红秀,等.掺聚丙烯纤维高强混凝土高温后导温性能研究[J].混凝土与水泥制品,2014(12):56-59.
[13]李兆林,石振武,柳明亮.不同种类聚丙烯纤维混凝土性能对比试验[J].科学技术与工程,2014(14):292-296.
[14]程红强,高丹盈.聚丙烯纤维混凝土冻融损伤试验研究[J].东南大学学报:自然科学版,2010,40(S2):197-200.
[15]孙海燕,何真,龚爱民.混杂纤维对混凝土力学及抗裂性能的影响[J].混凝土与水泥制品,2009(2):48-51.
[16]赵兵兵,贺晶晶,王学志,等.玄武岩-聚丙烯混杂纤维混凝土抗水渗透试验[J].兰州理工大学学报,2016,42(1):139-143.
[17]赵兵兵,贺晶晶,王学志,等.玄武岩-聚丙烯混杂纤维混凝土抗冻性试验[J].辽宁工程技术大学学报:自然科学版,2015,34(12):1402-1407.
[18]李燕飞,杨健辉,丁鹏,等.混杂纤维混凝土力学性能研究[J].玻璃钢/复合材料,2013(2):60-64.
[19]王学志,贺晶晶,邹浩飞,等.玄武岩-聚丙烯混杂纤维混凝土硫酸盐腐蚀试验研究[J].混凝土与水泥制品,2014(5):50-54.
[2]丁庆军,王发洲,黄绍龙,等.桥面铺装层材料设计[J].武汉理工大学学报,2004(4):55-58.
[3]梁指标,何惠红.桥面铺装过早损坏的原因分析及处治对策[J].中南公路工程,1997(2):25-29.
[4]杨华侨,丁一,陈小兵.不同种类纤维混凝土物理及力学性能对比分析[J].施工技术,2018,47(20):6-9.
[5]唐巍,张广泰,董海蛟,等.纤维混凝土耐久性能研究综述[J].材料导报,2014,28(11):123-127.
[6]周衡,谢珊珊.不同种类纤维混凝土高温抗渗性能研究[J].混凝土与水泥制品,2014(11):52-55.
[7]薛启超,张井财,何建,等.玄武岩纤维混凝土断裂性能实验研究[J].哈尔滨工程大学学报,2016,37(8):1027-1033.
[8]张兰芳,尹玉龙,刘晶伟,等.玄武岩纤维增强混凝土力学性能的研究[J].硅酸盐通报,2014,33(11):2834-2837.
[9]李为民,许金余,沈刘军,等.玄武岩纤维混凝土的动态力学性能[J].复合材料学报,2008(2):135-142.
[10]孟雪桦,蔡迎春,金祖权.玄武岩纤维增强混凝土断裂能研究[J].混凝土与水泥制品,2012(1):33-35.
[11]王明明,李忠雨,左洪胜,等.聚丙烯纤维混凝土的性能研究及工程应用[J].施工技术,2007(6):91-95.
[12]王飞剑,张琦,杜红秀,等.掺聚丙烯纤维高强混凝土高温后导温性能研究[J].混凝土与水泥制品,2014(12):56-59.
[13]李兆林,石振武,柳明亮.不同种类聚丙烯纤维混凝土性能对比试验[J].科学技术与工程,2014(14):292-296.
[14]程红强,高丹盈.聚丙烯纤维混凝土冻融损伤试验研究[J].东南大学学报:自然科学版,2010,40(S2):197-200.
[15]孙海燕,何真,龚爱民.混杂纤维对混凝土力学及抗裂性能的影响[J].混凝土与水泥制品,2009(2):48-51.
[16]赵兵兵,贺晶晶,王学志,等.玄武岩-聚丙烯混杂纤维混凝土抗水渗透试验[J].兰州理工大学学报,2016,42(1):139-143.
[17]赵兵兵,贺晶晶,王学志,等.玄武岩-聚丙烯混杂纤维混凝土抗冻性试验[J].辽宁工程技术大学学报:自然科学版,2015,34(12):1402-1407.
[18]李燕飞,杨健辉,丁鹏,等.混杂纤维混凝土力学性能研究[J].玻璃钢/复合材料,2013(2):60-64.
[19]王学志,贺晶晶,邹浩飞,等.玄武岩-聚丙烯混杂纤维混凝土硫酸盐腐蚀试验研究[J].混凝土与水泥制品,2014(5):50-54.