Mainly used in concrete construction, it can improve the workability of concrete and also have high cost effectiveness.
主要在混凝土施工中使用，可明显改善混凝土的和易性，具有很好的性价比。
Effect of fly ash on the workability, strength and hydration heat of high belite cement and concrete.
粉煤灰对高贝利特水泥和混凝土的工作性、强度及水化热的影响。
Self-compacting concrete(SCC) is a kind of high-performance concrete with high workability.
自密实混凝土是一种具有高工作性能的高性能混凝土。
But physical excitation has a bad effect on the workability of fresh concrete.
但物理激发对新拌混凝土工作性造成一定的不利影响。
It can improve the workability, pumping properties and early strength of the concrete.
使混凝土的和易性、可泵性均得到明显的改善，可提高早期强度。
However, there are large distinctions between the influences of the two types to the workability of cement paste and fresh concrete, the mechanical properties and microstructure of hardened concrete.
它们对水泥净浆和新拌混凝土的工作性的影响有所不同，此外掺加两类减水剂的硬化产物的力学性能和微观结构也具有很大差别。
They can remark ably improve the workability, reduce the gradual loss of lump and improve the compressive strength of concrete.
这两种复配型减水剂能明显改善混凝土的和易性，降低坍落度损失和提高混凝土抗压强度。
The second is control of workability of fresh concrete, if concrete isolation secretion of water, strictly control the vibration time, vibration rehabilitation must be timely.
二是控制新拌混凝土的和易性，如果混凝土离析泌水，严格控制振捣时间，必须适时进行复振。
And analyses that the five factors have an effect on the workability and mechanical properties of recycled coarse aggregate high strength concrete.
分析这五个因素对再生混凝土工作性能和力学性能的影响。
In order to enlarge the applications of rubber concrete, the workability, mechanical property and durability of mortars and concretes are investigated.
为了扩大橡胶混凝土的使用范围，本文研究了掺加两种粒径橡胶的水泥胶砂和混凝土的工作性、力学性能及耐久性。
Its good workability and homogeneity not only are convenient to the construction but also quicken the pouring progress of concrete.
良好的和易性、均匀性既方便施工又加快了混凝土浇筑进度。
Green high performance concrete has not only good endurance, workability, mechanics and economic reasonability, but also characteristics of energy saving and environment protection.
绿色高性能砼有仅具有良好的耐久性、工作性、力学性能及经济合理性，还具有节能、环保等特点。
The influences of fine slag powder to workability, compressive strength and durability of high-performance concrete were discussed.
讨论了矿渣微粉对高性能混凝土工作性能、抗压强度及耐久性的影响。
It has great dispersibility and can improve the workability and strength of concrete.
具有良好的分散性，可明显改善混凝土的和易性，提高砼的强度。
The high performance concrete for core wall of earth dam must be good workability, low early strength, high final strength, high seepage resistance, low elasticity modulus and high tensile strength.
黄壁庄水库副坝防渗心墙加固工程所需高性能混凝土，要求和易性好、早期强度低、后期强度高、抗渗性能好、低弹模和高抗拉强度。
This article discusses the influences of fine slag powder to workability, compressive strength and durability of concrete in the test.
通过试验讨论了矿渣微粉对混凝土工作性能、抗压强度及耐久性的影响。
Aiming at these defects, a kind of special mortar for plastering aerated concrete with good workability, good water retention, high bonding strength and low shrinkage ratio has been prepared.
针对这些缺陷，研制了一种和易性好、保水性好、粘结强度高、收缩率低，适合加气混凝土抹灰用的砂浆。
The results prove that SRA can improve the workability of HPC and promote effectively anti-cracking performance of concrete, without any negative effect on the mechanical property of concrete.
研究结果表明：减缩剂能够改善高性能混凝土的工作性，对混凝土的力学性能无副作用，能够有效地提高混凝土的抗裂性能。
The experimental results for workability, air content, compressive strength and flexural toughness of modified macro polypropylene fiber reinforced high performance concrete are presented.
按照国际标准对新型仿钢丝聚丙烯合成长纤维增强高性能混凝土的工作度、含气量、强度及弯曲韧性进行了试验研究。
Mechanism, Mix ratio design, workability evaluation and test method of high-dropping shake-free self-compacting concrete were put forward.
提出对高抛免振捣自密实混凝土的工作机理、配合比设计、工作性评价方法及相应的试验方法。
This paper introduces the evaluation methods of workability, and studied the properties of the self-compacting concrete with the addition of ground granulated blast-furnace slag (GGBS).
探讨了自密实混凝土工作性能的评定方法，并对掺加磨细矿渣的自密实混凝土进行了研究。
When the stone waste powder content raise from 10% to 20%, the workability of the concrete was improved, the early strength of concrete was gradually increased and the later strength was reduced.
当废石粉掺量由10%增加至20%时，混凝土的工作性能均会得到提高，同时混凝土的早期强度也逐渐升高，但混凝土后期强度却会降低。
And compared with ordinary concrete, high performance concrete adding fly ash shows better workability. But there is an optimum mixing dosage of fly ash for crack resistance of concrete.
与普通混凝土相比，掺入粉煤灰可以改善混凝土拌和物的和易性，但粉煤灰对于混凝土的抗裂性存在一个最优的掺量。
For pumping concrete mixture the problem of reducing the cement content and keeping better workability was also solved by using optimum proportioning.
优选配合比解决了泵送混凝土与减少水泥用量和低坍落度的矛盾。
The bond between steel and reinforced concrete is a fundamental factor to ensure the workability of steel reinforced concrete composite structures and members.
型钢与混凝土的粘结是保证钢混凝土组合结构构件正常工作的基础。
The workability of the polymer concrete including slump and slump flow is good.
聚合物混凝土的施工性能指标如塌落度和扩展度良好。
The paper summarizes the definition of self-compacting concrete and its workability, discusses in detail the research and development of the methods for testing SCCs passing ability in the world.
介绍了水下自密实混凝土的配合比设计，生产，检验方法及验收等一系列问题，总结了苏通大桥承台成功封底的施工工艺，对以后同类施工有一定指导和借鉴。
The high-performance concrete is based on durability as the main indicators, along with high strength, high early strength, high workability and excellent performance of new concrete.
高性能混凝土是一种是以耐久性为主要指标同时具备高强、高早强、高施工性等优异性能的新型混凝土。 [www。
The high-performance concrete is based on durability as the main indicators, along with high strength, high early strength, high workability and excellent performance of new concrete.
高性能混凝土是一种是以耐久性为主要指标同时具备高强、高早强、高施工性等优异性能的新型混凝土。 [www。
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