This paper analyzes the influence of SRA on the shrinkage-cracking property of HPC by designing five check-up experiments including desiccation-shrinkage,autogeous shrinkage,fiat-restraint,anti-chloride ion penetration and ultimate tensile strain.
设计了干燥收缩、自收缩、平板约束、抗氯离子渗透性以及极限拉应变等5种试验方法来检验减缩剂对高性能混凝土收缩开裂性能的影响。
This paper is to analyze the effect on shrinkage-cracking property of HPC by flyash by designing five check-up experiments such as desiccation-shrinkage,small steel rings restraint,hydration heat,ultimate tensile strain,and anti-chloride ion penetration,etc.
设计收缩、小圆环约束开裂、水化热、极限拉伸率以及抗氯离子渗透性等5种试验方法来考核粉煤灰对高性能混凝土收缩开裂性能的影响。
This paper is to analyzed the influenced effect on shrinkage-cracking property of HPC by SRA, by means of designing five check-up experiments such as desiccation-shrinkage、autogenous shrinkage、flat-restraint、anti-chloride ion penetration and ultimate tensile strain etc.
本文设计了干燥收缩、自收缩、平板约束、抗氯离子渗透性以及极限拉应变等5种试验方法来考核减缩剂对高性能混凝土收缩开裂性能的影响。
Contributing factor of concrete shrinkage crack and its prevention;
混凝土收缩裂缝的成因及预防
The causes and control of shrinkage cracks of concrete;
混凝土及商品混凝土收缩裂缝的成因和防治
Analytical prediction and experimental research on shrinkage cracking of restrained early-age concrete;
受约束早龄期混凝土收缩开裂的理论预测和试验研究
Influence of GGBFS content on shrinkage cracking of concrete;
矿渣微粉掺量对混凝土收缩开裂的影响
An experimental study on shrinkage cracking of thin slab structure concrete with fly ash;
粉煤灰薄板结构混凝土收缩开裂试验研究
Treating and mending of slight shrinkage cracking is not quality accident;
轻微收缩裂缝的处理与修补不是质量事故
Aim at Shrinkage cracking phenomenon that appears during the pouring construction with cantilever method in the droughty northwest, this paper gave the theoretical and empirical analysis, expounded the causation, put forward the efficient way to prevent the appearance of shrinkage cracking.
本文对在西北干旱地区应用悬臂浇筑法施工时产生的收缩裂缝现象进行了现场实测和理论分析,阐述了裂缝产生的原因和条件,提出了防止收缩裂缝的有效措施。
The test result shows that the concrete toughness,anti-deformation and leakage,freezing-thaw resistance and controls the shrinkage cracking in the early period are improved by mixing the improved polyester fiber.
本文通过国家863超高强改性聚酯合成纤维增强混凝土施工性能、抗压强度、抗折强度、抗渗、抗冻融、抗阻裂基本性能与基准混凝土试件性能进行了对比试验研究,试验结果表明,加入超高强改性聚酯纤维能明显改善混凝土的韧性,提高混凝土变形、抗渗、抗冻融性能和抵抗早期收缩裂缝能力,有利于提高混凝土结构的耐久性。
Study on measures for avoiding the contraction cracks of faceslab concrete;
防止面板混凝土收缩裂缝的措施探讨
So,controlling horizontal crack produced is important for improving the quality of asphalt pavement,controlling and research the producing cause of contraction crack in semi-rigid basement has much positive meanings.
半刚性基层产生横向裂缝,对铺筑后的沥青面层是十分不利的,防治基层产生横向收缩裂缝对提高沥青路面品质十分重要,因此,研究分析半刚性基层收缩裂缝的成因机理和防治措施有其积极的意义。
It analyzes the damage characteristics and formation reasons of the contraction crack,structural crack and alkali-aggregate reaction crack,and brings forward corresponding prevention measures,which will increase the beauty effectiveness of buildings and increase the service quality of wall surface.
对外墙砂浆粉刷层的收缩裂缝、结构裂缝、碱—集料反应裂缝的破坏特征及形成原因进行了分析,并提出了相应的防治措施,以增加建筑的美观效果,同时提高了墙面的使用质量。
Influence of Chemical Admixtures on the Early Cracking and Drying Shrinkage of Concrete;
化学外加剂对混凝土收缩开裂的影响
STUDY OF SEVERAL ISSUES ON EARLY AGE SHRINKAGE CRACKING OF HIGH PERFORMANCE CONCRETE
高性能混凝土早期收缩开裂问题研究
Experimental Research on Restrained Shrinkage Cracking Properties of Pumping Concrete;
泵送混凝土约束收缩开裂性能评价试验研究
Influence of rubber powder on shrinkage cracking of concrete
橡胶粉对于混凝土收缩开裂性能的影响
Research on Three-Elements Constitutive Equation of Plastic Shrinkage Cracking for Cement Mortar
水泥砂浆塑性收缩开裂的三元本构方程研究
Flexural Strength and Plastic Shrinkage Cracking Resistance of Aramid Fiber Cement Mortar
芳纶纤维砂浆的抗折强度与抗塑性收缩开裂
Study on Influence of Compositions on Hydration and Shrinkage Cracking in Cement-based Materials at Early Ages
水泥基材料组分对早期水化及收缩开裂影响的研究
Measurement Method for Shrinkage and Crack of Light Aggregate Concrete
采用内约束法评价轻集料混凝土的干燥收缩开裂
Influence of fine aggregate on initial shrinkage of high performance concrete
细集料对高性能混凝土早期塑性收缩开裂的影响
Influence of Shrinkage Reducing Agent and Expansion Agent on the Shrinkage Cracking of Cementitious Self-leveling Mortar
减缩剂和膨胀剂对水泥基自流平砂浆收缩开裂性能的影响比较研究
Effects of hydroxyethyl methyl cellulose and polypropylene fiber on plastic shrinkage cracking of cement mortar
复掺羟乙基甲基纤维素和聚丙烯纤维对水泥砂浆塑性收缩开裂性能的影响
Effects of Curing on Early-age Shrinkage and Cracking of Concrete;
养护对混凝土早期收缩和开裂的影响
The cold weather made the cement in the sidewalk contract until it finally cracked.
寒冷的天气使人行道的水泥收缩，最后终于裂开。
Research on Effects of Early-age Shrinkage and Plastic Cracking of High Strength Concrete;
高强混凝土早期收缩及塑性开裂影响因素研究
Research on Early-age Plastic Shrinkage and Cracking of Green High Durable Concrete;
绿色高耐久性混凝土的早期塑性收缩与开裂性能研究
Law Research and Mechanism Analysis of Shrinkage and Cracking on High Performance Concrete;
高性能混凝土收缩与开裂规律的研究及机理分析
Influencing Factors and Evaluation Methods for Shrinkage and Cracking of Light Weight Aggregate Concrete
轻集料混凝土干燥收缩影响因素及开裂评价方法
Long-term behavior of composite beams with shrinkage,creep and cracking(Ⅱ):theoretical analysis
考虑收缩、徐变及开裂影响的组合梁长期受力性能研究(Ⅱ)——理论分析