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- initial drying shrinkage 初始干缩,原始干缩
- initial dry shrinkage 原始干缩
- The drying shrinkage and self-shrinkage of concretes with different water to binder ratios were studied. 实验研究了不同水胶比的混凝土干缩性能及自收缩性能。
- The influence of shear-pattern steel fiber on plastic cracking, drying shrinkage and mechanical properties of concrete is studied by experiments. 摘要通过试验研究剪切型钢纤维对混凝土的塑性开裂、干燥收缩及混凝土力学性能的影响。
- It is generally considered that drying shrinkage occurs because of the capillary tension as a result of water lost from capillary. 混凝土的干燥收缩机理通常用毛细孔失水,形成弯月面,在毛细孔张力的作用下产生收缩。
- The corrosion resistance and freeze/thaw resistance of alkali-activated cement are much better, and the drying shrinkage rate is much greater than ordinary portland cement. 碱?磷渣?粉煤灰胶凝材料的耐蚀性和抗冻性能均显著优于硅酸盐水泥,其干缩比硅酸盐水泥的大。
- The results indicated that high C3S cement had higher strength and less drying shrinkage and can largely utilize fly ash (up to 40% of fly ash may be added). 结果表明,高C3S水泥具有较高的强度和较小的干缩,可大量利用粉煤灰(掺量可达40%25)。
- The calculation formula on joint open has been set up with the consideration of hogging distortion caused by temperature, expansion deformation and drying shrinkage. 建立了考虑温度翘曲变形、伸缩变形和干缩变形等影响的接缝张开量的计算公式。
- Some durability tests such as drying shrinkage test, sulphate attack test, briny erode test, freezingand thawing recycles test and reinforcing steel rust test are taken on. 为此本文亦进行了掺加JYQ796型高效无机防水防潮剂的水泥砂浆或混凝土的一系列耐久性实验,如干缩实验,抗硫酸盐侵蚀、抗海水侵蚀、抗冻融循环、抗钢筋锈蚀等。
- When AEA was mixed into mortar, dry shrinkage of mortar reduced and infiltration resistance has improved. 砂浆中加入AEA膨胀剂后,砂浆的干缩下降,抗渗性也有一定提高;
- 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。
- In this paper,the effects of the steel fibers of different elastic modules,polypropylene fibers and polyacrylonitrile fibers on the dry shrinkage of concrete are studied. 主要研究了不同弹性模量的钢纤维、聚丙烯纤维和聚丙烯腈纤维混杂对水泥混凝土的干燥收缩性能的影响。
- The effects of different content of the esterified starch on rheologicl behaviour of ceramic slip, drying shrinkage, density, strength and microstructure of the green body were discussed. 详细探讨了酯化淀粉添加量不同时,对陶瓷浆料流变特性的影响,以及对成型出素坯的线收缩、相对密度、干坯强度以及显微结构的影响。
- The causes for dry shrinkage of elastic knit are described. The influences of thermodynamic, chemical and time-relative parameters on dry shrinkage of elastic knit are analyzed. 介绍了弹性针织物产生干收缩的原因及热力学的、化学的和与时间有关的参数对弹性针织物干收缩的影响。
- In the experiment the author study on increasing the durability (including strength, dry shrinkage, abrasion resistance and freeze resistance) of roller compacted concrete (RCC) by mixing fly ash. 摘要试验采用在碾压混凝土中掺入粉煤灰(其掺量占胶凝材料总量的10%25~45%25)的方法来提高碾压混凝土耐久性(包括强度、干缩、耐磨性和抗冻性)。
- The results indicate that stirring evidently affects the formation and morphology of xonotlite secondary particles, and further affects the dry shrinkage and bulk density of xonotlite products. 结果表明,搅拌对上述性质的影响非常显著,并且进一步影响硬硅钙石制品的干燥收缩率及体积密度。
- But the dry shrinkage property of cement stabilized macadam is relatively high, the property of base will be influenced if dry shrinkage wouldn't be well controlled to produce easily cracks. 但是水泥稳定碎石的收缩性较大,施工时若控制不好容易产生裂缝,使基层的性能受到影响。
- Dry shrinkage problem for hydrogel was solved and environmentally friendly water-soluble itaconic epoxy ester resin grouting material with even better comprehensive performance was prepared. 解决了材料固结体的干缩问题,得到了综合性能更加优异的环保型水溶性环氧灌浆材料。
- Effect of additives on the properties of sulphoaluminate cement,such as setting time,strength,impermeability,dry shrinkage and the corrosion resistance were investigated by experiments. 实验研究了外加剂对硫铝酸盐水泥凝结时间、强度、抗渗性、抗化学侵蚀性及抗干缩性的影响。
- His initial reaction was one of shock. 他最初的反应是震惊。
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