目前,混凝土特别是大流动性混凝土容易产生早期裂缝。
Presently, concrete especially high flowing concrete can easily crack at early ages.
该设计避免了高强大流动性混凝土配合比设计仅依靠不断试配调整的局限性,使设计过程有章可循。
We can avoid some limitations which appear in the procedure of the design of the high strength with high fluidity, such as trial with continuous adjustment.
聚丙烯纤维不适于大流动性混凝土,对中小流动性的混凝土匀质性改善作用大,聚丙烯腈不宜用于匀质性的改善。
The polypropylene fibre have the better effect to concrete that the flowability is not too big than that is big. The polyacrylonitrile have no use to improve the homogeneity of concrete.
混凝土混合物致密、高流动性,使用灰色水泥和熔渣来获得浅灰色装饰,并且满足LEED标准。
The concrete mix was a dense, high fluid self-consolidating mix, using grey cement and slag to achieve a light grey finish and meet LEED standards.
增粘剂的采用是保证大流动性轻骨料混凝土具有优良性能的关键。
Adoption of viscous agent is a key technique to ensure lightweight aggregate concrete with big fluidity to have good performances.
精心研究并在文科楼应用的高流态混凝土在施工中具有良好的流动性、抗分离性、间隙通过性和填充性。
The high flowing concrete using in art building projects has good fluidity, anti separation quality, passing quality through gaps and filling characteristic.
本文着重介绍采用以破碎卵石为粗骨料配制大流动性泵送c 60混凝土技术应用。
The paper mainly introduced the application technology of the pumping high strength concrete (C60) which takes crushed gravel as coarse aggregate with big fluidity.
通过大量实验阐述了RPC -活性粉末混凝土配制过程中,各种组分对其浆体流动性和硬化体强度的影响,就其机理进行讨论。
Through a great number of experiments, the influences of the components to paste flow and concrete strength during RPC compounding were illustrated, at the same time, we discussed the mechanism.
萘系与三聚氰胺系减水率较低,在低水灰比下流动性较差且坍落度损失较大,不利于商品混凝土的运输和施工。
Serials of naphthalin and tripolycyanamide have low water reducing efficiency, bad flow degree under low water cement ratio and sharp loss of concrete slump.
该混凝土具有流动性大,坍落度损失小,早期强度高的特点,适合于高层、大跨度的现代建筑结构。
The concrete has the characteristics of large fluidity, low slump loss, and high early strength, and it is suitable for the highrise and long-span building structure.
在泵送混凝土中掺外加剂,能增加拌合物的流动性并降低泵送混凝土坍落度经时损失。
Mixing admixture in the pumped concrete can increase the mobility of mixture and reduce pumped concrete slump loses through time.
主要研究了聚丙烯纤维(PPF)对磷酸盐混凝土性能如流动性、可操作时间、抗折和抗压强度的影响。
Effects of polypropylene fiber (PPF) on properties of phosphate cement-based concrete, such as flowability, operable time, flexural and compressive strength were investigated.
采用速溶高分子聚合物,制成低流动性损失水下混凝土用抗分散剂,并进行抗分散性、流动性损失试验。
Anti dispersion agent for low fluidity loss underwater concrete was prepared with soluble high molecular polymer and tests on anti dispersion and fluidity loss were carried out.
此外,粉煤灰和石灰石替代部分水泥还能减小混凝土的绝热温升、改善其流动性。
In addition, it was able to confirm an effect to reduction of adiabatic temperature rise and improvement of fluidity of concrete.
利用三电场粉煤灰可配制高流动性大掺量粉煤灰高强混凝土。
The high strength concrete with high proportions of fly ash and large slump may be prepared by using this good guality fly ash.
料斗全新设计,采用16锰钢焊制,耐磨;混凝土在料斗内流动性和吸入性好。
The hopper is newly designed and welded with wear – resistant 16Mn steel; The concrete in the hopper has a good flowing and absorbency performance.
本文论述了通过掺加矿物掺合料、高效减水剂的技术途径,利用机制砂作为混凝土的细集料,在实验室配制出了大流动性的高强机制砂混凝土。
By the means of adding mineral admixture and high-range water reducer, this article used the manufactured sand as the fine aggregate to produce the high strength flowing manufactured sand concrete.
钻孔灌注桩水下混凝土配制的关键是要求流动性要好。
The key point in making underwater concrete of drill hole grouting pile is that it requires high fluidity.
研究了钢渣、硅粉掺量对混凝土强度与流动性的影响以及钢渣、硅粉混凝土强度规律。
It was studied that the effect of the quantity of steel slag and silica fume on concrete strength and fluidity as well as the rule of the strength of concrete with steel slag and silica fume.
本文测试了矿渣细度对高强混凝土流动性和抗压强度的影响。
The effect of fineness of slag on the workability and compressive strength of HSC is tested.
通过大量实验阐述了RPC-活性粉末混凝土配制过程中 ,各种组分对其浆体流动性和硬化体强度的影响 ,就其机理进行讨论。
Through a great number of experiments, the influences of the components to paste flow and concrete strength during RPC compounding were illustrated , at the same time, we discussed the mechanism.
研究了具有高流动性的流态混凝土的配比、流动性、早期裂纹扩展、强度、收缩、碳化和抗冻融性,这种混凝土无论在成本上还是性能上都是非常可行的。
Mixture proportions, flowability, crack propagation at early ages, strength, shrinkage, carbonation and the freezing and thawing resistance of flowing concrete with high flowability were investigated.
研究了具有高流动性的流态混凝土的配比、流动性、早期裂纹扩展、强度、收缩、碳化和抗冻融性,这种混凝土无论在成本上还是性能上都是非常可行的。
Mixture proportions, flowability, crack propagation at early ages, strength, shrinkage, carbonation and the freezing and thawing resistance of flowing concrete with high flowability were investigated.
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