水电与新能源
水電與新能源
수전여신능원
Hydropower And Nwe Energy
2015年
8期
4-6
,共3页
高强混凝土%裂缝%防裂%聚丙烯纤维
高彊混凝土%裂縫%防裂%聚丙烯纖維
고강혼응토%렬봉%방렬%취병희섬유
high-strength concrete%cracks%crack prevention%polypropylene fibers
苏丹上阿特巴拉水利枢纽项目溢流坝消力池底板、堰体及反弧段面层为40 cm厚C85抗冲耐磨混凝土。为解决由于当地气温高、空气干燥，C85混凝土容易产生温度裂缝和干缩裂缝的问题，从混凝土裂缝产生的原理出发，对影响本项目C85混凝土产生裂缝的因素进行了分析，制定了相应的预防措施，从而有效地减少了裂缝的发生。
囌丹上阿特巴拉水利樞紐項目溢流壩消力池底闆、堰體及反弧段麵層為40 cm厚C85抗遲耐磨混凝土。為解決由于噹地氣溫高、空氣榦燥，C85混凝土容易產生溫度裂縫和榦縮裂縫的問題，從混凝土裂縫產生的原理齣髮，對影響本項目C85混凝土產生裂縫的因素進行瞭分析，製定瞭相應的預防措施，從而有效地減少瞭裂縫的髮生。
소단상아특파랍수리추뉴항목일류패소력지저판、언체급반호단면층위40 cm후C85항충내마혼응토。위해결유우당지기온고、공기간조，C85혼응토용역산생온도렬봉화간축렬봉적문제，종혼응토렬봉산생적원리출발，대영향본항목C85혼응토산생렬봉적인소진행료분석，제정료상응적예방조시，종이유효지감소료렬봉적발생。
In the construction of the Upper Atbara Dams Complex Project , 40 cm thick C85 abrasion-resistance concrete layers are used in the surfaces of the stilling pool basin , the weir body and the ogee segment of the overflow dam .How-ever, temperature cracks and shrinkage cracks are frequently occur in C 85 concrete because of the local high tempera-ture and dry air .Based on the theoretical principles , factors that could cause such cracks in C 85 concrete in this project are analyzed .Then, prevention measures are made accordingly and the occurrence of cracks is effectively reduced .
