现浇护堤植生型生态混凝土耐久性的试验研究  

DURABILITY OF CAST-IN-SITU ECO-CONCRETE USED FOR RAVAGE-PROTECTING AND PLANT-GROWING

作　　者：刘荣桂[1] 万炜[1] 陆春华[1] 吴春笃[2] 彭振华[3] 田安国[4] 颜庭成[5] 

机构地区：[1]江苏大学土木工程系,镇江212013 [2]江苏大学生物与环境工程学院,镇江212013 [3]镇江久久生态材料有限公司,镇江212003 [4]淮海工学院土木工程系,连云港222005 [5]江苏华东建设基础工程总公司,南京210007

出　　处：《工业建筑》2005年第z1期668-672,共5页Industrial Construction

基　　金：国家"863"计划项目"镇江水环境处理"专项;国家自然科学基金资助项目(编号:50478089);江苏省自然科学基金资助项目(编号:BK2003050)

摘　　要：生态混凝土是指有助于降低地球环境的负荷,同时,能谋求和生态系统的调和或共生、创造舒适的环境,具有实用性的混凝土。探讨了配有SR-3无机质混合材料的护堤植生型生态混凝土(孔隙率一般在20%左右),在冻融循环和碳化作用下的耐久性能,用试块质量和横向基频的变化情况以及试块的碳化深度和碳化后的强度来对其冻融和碳化耐久性进行评价。试验结果表明,在生态混凝土中加入SR-3后,增强生态混凝土的抗冻疲劳性能,降低了此种生态混凝土的强度损失,使得具有较好的抗冻性;此种生态混凝土的碳化后仍然能够满足工程所需要的性能要求。Ecological concrete is regarded as a kind of practical concrete that can help to decrease the load of earth environment and that also can seek to be harmonious or commensally with ecosystem to create comfortable environment.This paper presents the research on the durability of resisting freezing and carbonation of ecological concrete (porosity about 20% measured by experiment) that can protect dam,in which inorganic compound material SR-3 is prepared,under freezing and thawing cycle,carbonation condition,and the tests on quality and horizontal frequency,the carbonation depth and strength of the ecological concrete specimens.The test results indicated that the ecological concrete′s ability of resisting fatigue and carbonation can be improved and the strength loss can be reduced by adding in SR-3,which brings on excellent durability of resisting freezing and thawing.The influence of carbonation on the function of ecological concrete is very small.

关 键 词：生态混凝土 强度 SR-3 冻融耐久性 碳化 

分 类 号：TU528[建筑科学—建筑技术科学]