试验结果表明：粉煤灰单掺降低了再生骨料混凝土的强度和弹性模量；
The experimental results show that the strength and elastic modulus of RAC are reduced when containing fly ash only.
掺粉煤灰再生骨料混凝土的拉压比与同强度等级的高强混凝土相比有所提高，抗裂性能有所改善。
Compared with the normal concrete, ratio of the splitting tensile strength to the compression strength of recycled aggregate concrete with fly ash is increased, and the cracking resistance improved.
为了研究部分再生骨料混凝土梁的力学性能，完成了5种配筋率共15根部分再生骨料混凝土梁的试验。
In order to investigate mechanical properties of partial recycled concrete beams, 15 partial recycled concrete beams with 5 kinds of reinforcement ratios were studied by experiment.
本文对国内外再生骨料和再生骨料混凝土的研究现状进行了分析，总结了再生骨料和再生骨料混凝土的基本性能。
The obtained results about the present research of the recycled aggregate and recycled concrete were analyzed and the basic behaviour was summarized in this article.
试验结果表明：粉煤灰单掺会降低再生骨料混凝土的弹性模量，粉煤灰与矿渣双掺对弹性模量的影响随两者组合比例不同而有显著差异。
The experiment results show that that the elastic modulus is reduced when fly ash only was added to RAC and present a significant difference with the rate of fly ash and slag content.
旧水泥混凝土再生骨料是一种新材料，必须对其路用性能进行研究。
Recycled aggregate of old cement concrete is a new material and it is necessary to study the road performance.
研究表明，适当掺加再生骨料不仅可以提高混凝土的强度，而且还可提高混凝土的粘聚性、保水性及保温性能。
Results showed that, adding proper recycled aggregates can not only enhance compressive strength of concrete but also advance its viscidity, water-keeping ability and heat preservation ability.
研究了再生骨料掺量、粉煤灰取代水泥量、粉煤灰超量系数和水灰比对粉煤灰再生混凝土抗压强度的影响。
The effects of recycled aggregate quantity, PFA replacing cement quantity, PFA over-replacing quantity and water cement ratio on PFA regeneration concrete compression strength were studied.
系统研究了坍落度相同的情况下再生粗骨料取代率对混凝土基本性能的影响。
The influence of recycled coarse aggregate replacement rate on properties of concrete with the same slump is discussed in the paper.
试验中再生骨料的掺入量分别为0，25%，50%，75%和100%，通过调节用水量使各组混凝土达到相同的坍落度。
In the tests, the mixed recycled aggregates range respectively from 0,25%, 50%, 75% to 100%, and the same concrete slump values are get by adjusting water dosage.
对配合比相同和坍落度相同两种情况下，不同再生骨料掺入量混凝土的基本性能进行了系统的试验研究。
Experimental work was conducted to investigate the basic physical and mechanical properties of concrete with different percentage of recycled aggregate.
最后根据本文的试验结果，建议了两种情况下不同再生骨料掺入量混凝土的基本力学性能计算公式。
Some equations for the properties of concrete with different percentages of recycled aggregate of the two cases are proposed based on the test results.
再生混凝土骨料的基本特性直接影响到它的性能，因此研究再生骨料的性能显得尤为重要。
The basic properties of recycled concrete aggregate directly affect its performance; therefore, the research on the properties of recycled aggregate is especially important.
从技术的角度来讲，废弃混凝土资源化产品即再生骨料和再生混凝土技术已基本成熟。
From the technique point of view, there are no difficulties to recycle waste concrete as recycled aggregates and recycled aggregate concrete.
再生混凝土骨料的基本性能直接影响再生混凝土的性能。
The basic properties of recycled concrete are directly affected by the recycled concrete aggregate.
利用废弃混凝土制备的再生骨料配制混凝土在发达国家已引起高度重视。
The preparation of recycled aggregate concrete by using waste concrete has been highly valued in developed countries.
试验结果表明，随着再生骨料掺入量的增加，混凝土的回弹值、抗压强度、劈裂抗拉强度、抗折强度和弹性模量均有不同程度的降低。
The result shows the concrete rebounding value, compressing strength, tensile splitting strength, rupture strength and elastic modulus are reduced in different degree by adding recycled aggregates.
通过试验总结出再生混凝土劈裂抗拉强度与抗压强度随着再生粗骨料强度等级增加而逐渐增加。
It is summed up through the test that the compressive strength and the cleavage tensile strength of and recycled concrete increased with the enhancement of the strength of recycled coarse aggregate.
为此，对废混凝土破碎物代替粗骨料配制的再生混凝土的施工性能、力学性能和热工性能进行了研究。
Therefore, the study on construction, mechanical and thermal property for reclaimed concrete prepared with waste concrete broken instead of rough aggregate is carried out.
并进一步对比了两种情况下得到的计算公式，结果表明，两种情况下得到的公式均可以用来描述不同再生骨料掺入量混凝土的基本力学性能。
By comparing the equations from two cases, the result shows that both equations can express the basic mechanical property of concrete with different recycled aggregate.
再生混凝土断裂韧度随龄期的增加而提高，提高的幅度与天然骨料混凝土基本一致，其趋势在增加；
Along with the increase of age, its fracture toughness grows, and the elevated range is in accordance with the natural aggregate concrete basically;
结果表明：相对于普通混凝土，随着再生粗骨料取代率的增加，再生粗骨料混凝土具有强度和弹性模量降低等特点；
The results show that the compressive strength and elastic modulus of recycled coarse aggregate concrete are lower compared with conventional concrete.
废弃混凝土经回收后可作为再生骨料配制成新拌混凝土。
Demolished concrete could be recovered and then used as reclaimed aggregate to make new concrete batch.
按照《普通混凝土用碎石或卵石质量标准和检验方法》（JGJ52-2006）测试了由该工艺生产的再生骨料的物理力学性能指标。
Various physical and mechanical properties of RCA from this technology were investigated according to Standard and Test Method for the Coarse Aggregate of Normal Concrete (JGJ 52-2006).
本文分别进行了利用碎混凝土块、碎砖块作为粗骨料的再生混凝土配合比的试验研究。
In this paper, the test results of mixture ratio of the concrete using recycled aggregates (crushed concrete rubbles or crushed bricks) are given.
并对再生混凝土的应用进行了经济可行性分析，为再生骨料和再生混凝土的应用提供了有利的支持。
And the economic feasibility of the application of the recycled concrete has been analyzed. It offers the advantageous support for the application of recycled concrete.
本文研究了再生粗骨料掺量、再生细骨料掺量、粉煤灰取代水泥量和水灰比对再生混凝土抗压强度和坍落度的影响。
The effect of recycled coarse aggregate quantity, recycled fine aggregate, PFA replacing cement quantity and water cement radio on the recycled concrete compression strength and slump.
在再生混凝土基本性能方面：通过采用不同的水灰比、不同的再生骨料的取代率以及不同的减水剂掺进量，配制再生混凝土。
On the physical properties, many deferent ingredients of recycled concrete are tried by adjusting concrete mixture ratio including the recycled coarse aggregate, FDN and fly ash.
再生混凝土氯离子导电量随着再生粗骨料取代率的增加而增加。
Moreover, chloride ion charge passed of recycled concrete was increased with the incremental replacement of recycled coarse aggregate.
再生混凝土氯离子导电量随着再生粗骨料取代率的增加而增加。
Moreover, chloride ion charge passed of recycled concrete was increased with the incremental replacement of recycled coarse aggregate.
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