1) early age cracking
早期开裂
1.
Countermeasures for early age cracking of HPC;
高性能混凝土早期开裂防治措施研究
2.
Influences of silica fume,fly-ash and ground granulated blast-furnace slag(GGBS) on early age cracking tendency of concrete were studied using the plate type concrete cracking frame,and autogenous shrinkage,total shrinkage of early age concrete under the drying condition were also measured in this experiment.
针对高性能混凝土普遍存在的早期开裂问题,采用板式混凝土开裂架研究了掺硅灰、粉煤灰、矿渣粉对混凝土早期开裂的影响规律,同时测量了混凝土早期自收缩及在干燥条件下的总收缩。
3.
Effects of shrinkage reducing admixture(SRA) and polypropylene fiber(PPF)on early age cracking tendency of concrete were studied.
方法采用板状试件法测试混凝土在两种干燥条件下的早期开裂状况,利用非接触式混凝土收缩仪测定混凝土早期自收缩与干燥条件下的总收缩,并通过压汞仪和扫描电子显微镜分析了各混凝土孔隙结构和微观形貌。
2) early-age cracking
早期开裂
1.
Study on early-age cracking of high strength concrete under circumferentially restrained condition;
环向约束条件下高强混凝土早期开裂
2.
The effect of high concentration type naphthalene series(superplasticizer(H-UNF)),common type naphthalene series(superplasticizer(C-)UNF) and polycarboxylate type superplasticizer(PC) on early-age cracking and volume stability of cement mortar was investigated by means of multi-channel ellipse ring shrinkage cracking test,free shrinkage and strength test.
采用多通道椭圆环收缩开裂试验、自由收缩试验和强度试验综合评价了萘系(UNF)、聚羧酸类(PC)高效减水剂对水泥砂浆体积稳定性及早期开裂的影响。
3.
In this paper, tensile properties of high strength concrete (HSC) at earlyages were experimentally investigated with self-designed testing rig, andrelationships between early-age cracking and tensile properties werediscussed.
混凝土材料的早期特性，特别是早期抗拉性能，是预测和评价混凝土结构早期开裂不可或缺的重要参数，但并未受到足够的重视。
3) early stage crack
早期开裂
1.
Analysis and calculation of temperature influence on the early stage crack of concrete wall;
温度作用对混凝土墙体早期开裂的影响分析与计算
2.
The early stage crack and drying shrinkage crack of self-compaction concrete and pump concrete with water binder ratio is 0.
43的自密实混凝土和普通泵送混凝土的早期开裂性能和干缩开裂性能进行了对比研究。
4) early crack
早期开裂
1.
Analysis on prevention of early cracks in cement concrete pavement;
水泥混凝土路面早期开裂的防治研究
2.
Owing to the early cracks in the premixed concrete,the paper analyzes its cause in terms ofproduction and construction and puts forward the countermeasures to be taken in the control pf production process.
针对当前预拌混凝土较易出现早期开裂这一现象,本文从生产和施工两方面分析了原因,提出了混凝土公司在生产过程控制方面应采取的应对策略。
5) cracking at early age
早期开裂性
6) cracking in concrete at early age
混凝土早期开裂
1.
From analysis the rea sons of pre-mature deterioration of concrete structures in our country,to achieve inte-grate effect in prolongation service life of concrete structures,suggestion that it is necessary to improve concrete homogeneity,reduce or eliminate of cracking in concrete at early age is presented in this paper.
改善混凝土的匀质性,减少或避免混凝土早期开裂,才能获得延长结构服务寿命的整体效果。
补充资料：穿晶开裂
分子式：
CAS号：
性质：金属材料开裂的金属学特征之一。裂纹由晶粒内部穿过。延性断裂的断口微观特征一般为韧窝状，脆性断裂的特征为解理或准解理花样。
CAS号：
性质：金属材料开裂的金属学特征之一。裂纹由晶粒内部穿过。延性断裂的断口微观特征一般为韧窝状，脆性断裂的特征为解理或准解理花样。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条