It is feasible to substitute the coarse aggregate concrete by wast...
用废混凝土骨料完全代替粗骨料配制混凝土是可行的。
It is feasible to substitute the coarse aggregate concrete by waste concrete aggregate.
用废混凝土骨料完全代替粗骨料配制混凝土是可行的。
The results show that the compressive strength and elastic modulus of recycled coarse aggregate concrete are lower compared with conventional concrete.
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 distribution characteristics of coarse aggregate in wall-affecting layer of concrete were studied by digital image processing technology.
采用数字图像分析技术对混凝土边界效应层中的粗骨料分布特性进行了测定。
The effect of maximum diameter, grading distribution and crushing index of coarse aggregate on flexural strength of concrete is investigated through experiments.
本文研究了粗集料的最大粒径、级配和压碎指标值等对路面混凝土抗折强度的影响。
The ratio between mortar and coarse aggregate in concrete refers to the volume ratio.
浆骨比是指混凝土中砂浆体积和粗骨料体积比。
The influence of different recycled coarse aggregate (RCA) replacement ratios on the strength of recycled concrete was investigated.
研究分析了再生粗集料不同取代率对再生混凝土各种强度指标的影响。
The influence of recycled coarse aggregate replacement rate on properties of concrete with the same slump is discussed in the paper.
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。
Using cracked brick as coarse aggregate in concrete can reduce pollution and decrease the usage of natural aggregate.
将碎砖作为混凝土的粗骨料，能够减少污染和减少天然骨料的使用。
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.
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。
The paper mainly introduced the application technology of the pumping high strength concrete (C60) which takes crushed gravel as coarse aggregate with big fluidity.
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。
When coarse reclaimed aggregate is used to prepare concrete, the concrete is good in strength and frost resistance and its shrinkage is rather great.
采用再生粗集料配制混凝土时，强度和抗冻性均良好，但收缩较大。
Finally using the model loading age and coarse aggregate, cement ratio parameters were analyzed, and the laws of fly ash concrete creep are present.
最终运用本模型对加载龄期和粗骨料、水泥砂浆比参数进行了分析，给出了粉煤灰混凝土徐变的规律。
Because of vast volume of a dam, the coarse aggregate of concrete used for constructing a dam is of large grain size and more grading.
由于水坝的体积大，用来筑坝的混凝土的粗骨科粒径大、分级多。合理确定最大粒径、分级尺寸和级配十分重要。
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.
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 curing condition, the maximum size of coarse aggregate and silica fume have certain effects on the strength, fracture properties and brittleness of concrete.
养护条件，粗骨料最大粒径和硅灰对混凝土的强度，断裂性能和材料脆性都有一定影响。
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。
The measured Young's modulus of lightweight aggregate concrete using Lytag as coarse aggregate is lower than that calculating from existing empirical formula.
采用粉煤灰陶粒配制成的轻骨料混凝土，其弹性模量实测值低于现有的经验公式计算值。
The invention discloses high-obdurability highway concrete, which has the ingredients of cement, coarse aggregate, fine aggregate, water, modified steel fiber and rubber microparticle.
本发明公开了一种高强韧性的公路用混凝土，其配料为水泥、粗集料、细集料、水、改性钢纤维、橡胶微粒。
The strength and modulus of elasticity of matrix increase from almost zero, then at a certain age up to those of the coarse aggregate, and even exceed for lightweight concrete.
基体的强度和弹性模量从零开始增加，到一定龄期后接近集料分散相，对于轻集料混凝土，基体的强度和刚度在一定龄期还将超过集料分散相。
The experimental results show that as far as crack resistance of concrete is concerned, the surface feature of coarse aggregate is more sensitive than aggregate shape.
试验结果表明：集料的表面特征对混凝土抗裂性的影响比集料的颗粒形状更为敏感。
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。
Coarse aggregate size distribution is important for the research on concrete strength analysis. Usually it can not be obtained without cutting a part of concrete down.
粗骨料粒径分布对混凝土强度分析有重要影响，但如果不用切割方法，混凝土内粗骨料三维粒径分布测量就无法实现。
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.
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。
We can make concrete paves by using of burned coal gangue as coarse aggregate.
利用燃烧后的煤矸石渣作骨料，配制混凝土路面砖。
Effect of grading distribution of coarse aggregate on flexural strength of road concrete;
道路碾压混凝土在我国路基路面工程中具有较好的应用前景。
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).
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。
At the contact point of concrete, intensify the movement of vibrator, but not so fast, otherwise coarse aggregate will submerged and separated.
在砼前后接槎处，加强振捣，但也不能过度振捣以防砼发生粗骨料下沉和分层离析。
At the contact point of concrete, intensify the movement of vibrator, but not so fast, otherwise coarse aggregate will submerged and separated.
在砼前后接槎处，加强振捣，但也不能过度振捣以防砼发生粗骨料下沉和分层离析。
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