Besides, la with high water content is beneficial to restraining the plastic shrinkage cracking of LWAC.
此外，高含水率轻骨料更有利于抑制混凝土早期塑性收缩开裂。
The result shows that the more the binder material or sand rate, the more serious the shrinkage cracking.
研究结果表明：随着胶结料总量和砂率的增大，高强高性能混凝土的收缩开裂趋于严重；
The shrinkage cracking of concrete is an important problem in the academic circles and structure engineering.
混凝土结构的收缩裂缝是学术界和工程应用中长期关注的重要课题。
The longer the length of trefoil polypropylene filament fiber, the better the anti-dry-shrinkage cracking property of cement mortar.
掺入的三叶形聚丙烯单丝纤维长度越长，水泥砂浆的抗干缩开裂性越好；
Arid areas to prevent and reduce the individual caused by wood shrinkage cracking and surface cracking of wood at the end and so on.
可防止和降低个别干旱地区因木材缩水所引起木材末端干裂和表面龟裂等现象。
The types of those cracks are summarized as three kinds: plastic shrinkage cracking, dry shrinkage cracking and hydration heat cracking.
将引起混凝土裂缝的类型归纳为塑性收缩开裂 ，干燥收缩开裂 ，水化热开裂三种 ，并对其表象及成因进行了阐述。
Plastic cracking, temperature cracking and dry shrinkage cracking are always occurred during construction and application of the ready mix concrete.
塑性开裂、温度开裂以及收缩开裂是混凝土施工应用中经常出现的质量通病。
It is extremely important to reduce dry shrinkage cracking of cement-stabilized macadam base course materials for prolonging service life of asphalt pavement with semi-rigid base.
减少水泥稳定碎石基层材料的干缩裂缝，对延长半刚性基层沥青路面的使用寿命至关重要。
The given values may be unconservative for tensile cracking caused by restrained shrinkage anchor zone splitting and other such tensile forces caused by effects other than flexure.
对限制收缩引起的张拉开裂以及弯曲之外的其它效应引起的锚区开裂和其它此类张拉力而言，给定值也许不够稳健。
When taken in concrete with proper quantity, HCFA can compensate the drying shrinkage of concrete, and accordingly reduce the cracking risk of concrete.
混凝土中掺加适量高钙灰，对于混凝土的干燥收缩有补偿作用，可降低其开裂风险。
Therefore, the technology combining steel fiber with expensive agent is appropriate to the plastic shrinkage and cracking of concretes.
因此，采用膨胀剂与钢纤维的复合技术是防止混凝土发生塑性收缩开裂的比较理想的技术措施。
Early age cracking caused by shrinkage is an important reason for the deteriorations of cement-based materials and reduction of volume stability.
早期收缩开裂是导致水泥基材料劣化及体积稳定性不良的重要原因。
The chemical shrinkage caused by cement hydration may bring out the volume change of mortar and concrete, and the appearance of cracking.
水泥水化反应引起的化学收缩会引起砂浆及混凝土的体积变化，可能会导致收缩裂缝的产生。
Based on the analysis of shrinkage and the cause of cracking, we investigated a number of engineering projects, and did experiment in practical projects.
本文在收缩和裂缝成因分析的基础上，通过对多个工程项目进行调查和实际工程试验，总结了一套系统控制楼板裂缝的措施。
A new type of multi-function system for testing linear shrinkage, stress and hot cracking of casting alloy is introduced in the paper.
介绍一种新型铸造合金线收缩-应力-热裂特性综合测试系统。
The early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
混凝土的早期开裂主要是由于混凝土失水所产生的干燥收缩、水泥水化所产生的混凝土自收缩以及水泥水化热所产生的温度应变所引起。
The capillary pressure which is the effect of the water loss from the concrete surface, is the origin of the plastic shrinkage in concrete cracking.
由于这种裂缝是由于混凝土塑性收缩引起，所以称之为塑性收缩裂缝。
If restrained, shrinkage strains can cause cracking of concrete and will generally cause the deflection of structural members to increase with time.
因此当收缩变形不能自由进行时，有可能导致混凝土产生裂缝，并且裂缝的数量随着时间的增加而增多。
The mechanism of cracking is the different rates of water loss in different depths which caused the uneven shrinkage deformation.
揭示了裂隙产生的机理是不同埋深处土体水分丧失速率的不同，产生了不均匀的收缩变形。
The tensile stress induced by restrained thermal and autogenous shrinkage deformations was the main driving force of cracking in concrete at early age.
温度变形和自生收缩变形等受约束形成的拉应力，是引起混凝土早期开裂的主要驱动力；
The research and application of organic shrinkage reducing agent (SRA) and non-organic expansion agent (EA) are drawing great attention among that of new-type concrete anti-cracking admixtures.
在新型混凝土抗裂外加剂中，有机类减缩剂及无机膨胀剂的研究与应用受到了广泛的关注。
Experimental results indicate the following: firstly, the initial cracking time of mortar increase and free shrinkage decrease with the percentage of blended fly ash increasing.
试验表明，随着粉煤灰掺量的增加，粉煤灰砂浆的初始开裂时间显著增加。
It produces moldings with good surface finish, is resistant to chemicals and stress cracking, and has low shrinkage and warpage.
它生产的模具表面光洁度好，可耐化学品和应力开裂，并具有低收缩和翘曲。
Calculating method for the long-term deflection of r. C. beams with cracking section, considering the nonlinear creep stress and shrinkage stress, is presented in the paper.
本文研究考虑非线性徐变和收缩时钢筋混凝土梁长期挠度计算方法。
The result shows that the tests, which are used in this paper, including ring test and free shrinkage test, could do well in evaluating the shrinkage-cracking potential of HSC.
研究结果表明：本文提出的采用圆环法和与圆环同步的测长法相结合共同评价高强混凝土的收缩开裂趋势的方法，能较好的评价高强混凝土的收缩性能。
To use shrinkage-reducing agent is one of the most effective and direct measures for cracking-resistance.
使用减缩剂是最有效、直接的防裂措施之一。
To use shrinkage-reducing agent is one of the most effective and direct measures for cracking-resistance.
使用减缩剂是最有效、直接的防裂措施之一。
应用推荐