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- High performance concrete should have not only high strength,but also excellent durability,relatively high crack resistance and relatively high volumetric stability,etc. 高性能混凝土不仅只是具有较高的强度,而且还应具有良好的耐久性,较高的抗热裂性能以及较高的尺寸稳定性等。
- The higher cracking resistance of the concrete added with fly-ash or GGBS is due to the lower elastic modulus and the better creep stress relaxation capability of concretes at early ages. 而掺矿渣粉或粉煤灰混凝土早期抗裂性改善的主要原因在于混凝土早期弹性模量减小、徐变和松弛能力提高。
- RESEARCH OF HIGH BELITE CEMENT DAM CONCRETE WITH LOW-HEAT AND HIGH CRACK RESISTANCE 高贝利特水泥低热高抗裂大坝混凝土性能的研究
- The high ductility and cracking resistance of Engineered Cementitious Composites(ECC)may greatly enhance the durability of concrete structures. 而工程复合材料ECC的高延展性和抗裂性将大大改善混凝土结构的耐久性。
- The study shows that the self-compacting high performance concrete members have high denseness, fine appearance without honeycomb and scale, better crack resistance and ductility. 研究表明,该方法成型的自密实高性能混凝土构件无蜂窝麻面、密实性好,具有更优越的抗裂性能和延性,构件和实梁的受弯、剪性能均与振捣成型的混凝土构件相近;
- It can meet the food directly.Innocuity, insipidity, no volatiles, high temperature resistance, crack resistance contribute to its perfect waterproof effection. 可直接与食品接触,无毒、无味、无挥发物、耐高温、难裂解,达到高度防水的效果。
- In this paper, crack resistance of high strength concrete (HSC) was improved by adding mineral admixtures including ground slag (GSL), silica fume (SF) and fly ash (FA). 采用外掺矿物掺合料磨细矿渣、硅粉和粉煤灰的方法来研究它们对提高高强混凝土抗裂性能的作用,并分析了相应的作用机理。
- The ability of halobutyl to be vulcanized with other rubbers, providing unique properties such as low air permeability, high heat resistance, excellent flex cracking resistance, and processability, makes it valuable in tire inner liner applications. 卤化丁基橡胶与其它橡胶进行硫化处理时,能形成低透气性、高耐热性、优良的加工性及耐挠曲龟裂性等特性,因此,卤化丁基橡胶在轮胎气密层应用领域中具有很高的价值。
- The evaluation showed that the high temperature stability,low temperature cracking resistance,aging resistance and temperature susceptibility meet the requirements of high grade road asphalt. 路用性能评价表明,沥青的高温稳定性、低温抗裂性、抗老化性和感温性等性能完全满足铺筑高等级公路的要求。
- Effect of retrogression and reaging treatment on stress corrosion cracking resistance of super high strength aluminum alloy[J].J Cent South Univ:Science and Technology,2006,37(6):1054-1059. RRA处理对超高强铝合金抗应力腐蚀性能的影响[J].;中南大学学报:自然科学版;2006;37(6):1054-1059
- The hydrocarbon cracking catalysts prepared by the silica rich REHY as an active component possessed high cracking activity, low coke formation and high metal tolerance... 用该富硅分子筛作为活性组分制备的烃类裂化催化剂,具有活性高、积炭量低和较强的抗重金属污染能力。
- It can be used to improve the concrete cracking resistance and seepage resistance. 具有改善混凝土抗裂能力、抗冲击抗磨耗能力等作用。
- The results showed that TCS steel had good cold cracking resistance and crystal hot cracking resistance. 结果表明,TCS钢具有良好的抗冷裂敏感性和抗结晶热裂敏感性能。
- The properties of environmental stress cracking resistance (ESCR) of HDPE were studied. 对HDPE的耐环境应力开裂性能进行了研究。
- Relationship between yield strength and near-neutral pH stress corrosion cracking resistance of pipeline steels-an effect of microstructure. 管道钢的屈服强度和抗近中性pH应力腐蚀开裂间的关系-显微结构的影响。
- In this paper, the anlysis is presented to study the impermeability and crack resistance of basement concrete wall. 本文尝试聚丙烯纤维砼应用于地下室砼墙抗裂防水。
- The aggregate of traditional insulation mortar is pearlite, which has high water absorbing capacity, high brittleness, low bond strength and poor crack resistance, so its application have been restricted in some fields. 传统的保温砂浆是以膨胀珍珠岩为骨料。 因膨胀珍珠岩吸水率很高、脆性大、粘结强度低、抗裂性差,应用受到了很大的局限。
- Strength and crack resistance capability of concrete will be improved after being reinforced by chopped basalt continuous fiber. 在混凝土中掺加乱向短切玄武岩纤维后,其强度及抗裂性能均会得到改善。
- By using the restricted shrinkage slab test, early effects of admixture on the cracking resistance of polypropylene reinforced high-performance concrete are investigated. 摘要采用平板限制收缩试验法,研究了减水剂与膨胀剂及其复合技术对聚丙烯纤维增强高性能混凝土的早期抗裂性的影响。
- Curing and constructing for cement-stabilized macadam under the condition of lower temperature is benefit to improve its crack resistance. 低温条件下养生、施工有利于改善水泥稳定碎石基层材料的抗裂性能。
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