凿毛 meaning in English
green cutting
hacking
roughen
Examples
- New method of evaluation of artificial chiseling concrete surface foughness
人工凿毛混凝土面粗糙度评定新方法 - Following is the factors ideating with the surface of old concrete in different way ( including brushing surface , chiseling surface , cleaving surface ) , adherence agent ( including cement slurry , cement sand slurry , cement slurry with the u expansion agent ) , the freeze - thaw circulation times and air - entraining . as a result , we found that the roughness influence on the adhesion capability of the new on old concrete to a large degree . the larger rougeness is , the larger the splitting tensile strength on the adhension face is . the kind of adhesion agent is also influence on the adherence capability of new on old concrete . the circulation times of freez - thaw have a large influence on the splitting tensile strength of adherence face of new on old concrete . the analysis of tests give some advices to the practical engineering
主要考察了老混凝土表面不同处理方式(刷毛面，凿毛面，劈裂面) 、界面粘结剂类型(水泥净浆，水泥砂浆， u型膨胀剂水泥浆) 、冻融循环次数等对新老混凝土粘结面劈拉强度的影响，以及冻融作用下新混凝土加气对粘结面劈拉强度的影响。试验结果表明，粗糙度对新老混凝土粘结性能有重要影响，随着粘结面粗糙度的增大，粘结面劈拉强度不断增加；界面粘结剂类型对新老混凝土粘结性能有一定影响，在冻融作用下， u型膨胀剂水泥浆粘结效果不如水泥净浆和水泥砂浆；冻融循环对粘结面劈拉强度有较大影响，加气能明显改善新老混凝土粘结面的抗冻能力。 - To avoid manual labor of chiseling - grossness , in the area of second - stage concrete construction , permanently non - removed metal molding boards nets are used as molding boards of first - stage concrete . substitution joints of reinforcing steel bars for traditional electric welding and usage of equipments for joints of reinforcing steel bars efficiently improve strength of junctions and rate of connecting reinforcing steel bars , and safety of construction and stability of quality , and greatly reduce cost . it ' s possible that three gorges project become top - ranking project in the world by study on systems engineering of high - strength concrete construction
混凝土缝面处理采用高压水流冲毛技术，大大提高了施工工效，减少了仓面污染；模板工程大量采用定型钢模板施工技术，提高了坝体混凝土成型质量和工程进度；在二期混凝土施工区域，为免除人工凿毛劳动强度，采用永久性免拆金属模板网作为一期混凝土模板；钢筋连接改进传统的电焊连接方式，采用大量采用钢筋接头机械连接技术，有效提高了接头强度和钢筋连接速度，施工安全性大大加强，质量稳定性有效提高，经济成本大大降低；三峡二期工程持续高强度混凝土施工系统工程的研究，使三峡工程成为名符其实的“世界一流工程”成为可能；三峡二期工程混凝土温控综合技术的应用，有效降低了坝体混凝土温度的产生；混凝土表面处理及裂缝处理技术的应用，提高了建筑物的整体性和耐久性。