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- In order to replace traditional tests,a quantitative analysis method for coarse aggregate angularity was presented based on Digital Image Processing(DIP). 基于数字图像处理技术,对粗集料棱角性进行量化研究,以取代传统的试验方法。
- Coarse aggregates angularity 粗集料棱角性
- Influence of Coarse Aggregate Angularity on Hot-mix Asphalt Properties 粗集料棱角性对沥青混合料性能的影响
- Results show that, the roughness, factual dimension and surface parameter keep good concordance, and they can all characterize the angularity of coarse aggregates well. 研究表明：粗集料的粗糙度、分形维数与表面参数具有良好的一致性，均可以较好地表征粗集料的棱角性。
- Micromechanics theory was employed to investigate the effect of coarse aggregates and air voids on asphalt mixtures’ viscoelasticity. 摘要 利用细观力学方法分析了粗集料和空隙对沥青混合料的粘弹性能的影响。
- A new design method based on voidage of coarse aggregates for grading of permeable bituminous surface course is presented in this paper. 本文提出了一种根据主骨料空隙率设计透水性面层沥青混合料级配的新方法。
- The calculation results are compared with the surface parameter from the current erosion-dilation techniques, and verified by the traditional air void ratio of uncompacted coarse aggregates. 将其计算结果与目前侵蚀膨胀法的表面参数指标进行了对比分析，并采用粗集料松装空隙率对粗糙度与分形维数2个图像指标进行了验证。
- Coarse aggregate is one of the major constituents in producing concrete. 粗集料是配制混凝土的主要原材料之一。
- concrete with recycled coarse aggregates 再生粗集料混凝土
- Keywords Coarse Aggregate;Form;Angularity;DIP;Quantitative Indexes; 粗集料;轮廓形状;棱角性;DIP;量化指标;
- This is due to the fact that there is more coarse aggregate per unit volume of concrete than when a larger, maximum size aggregate is used. 这是因为有更多的单位体积混凝土骨料比一面积较大,总计面积最大的运用。
- The results indicate that the limiting grain size of coarse aggregate has significant effect on the strength and workability of concrete, but it is lower than that of W/B ratio. 结果表明：粗骨料的最大粒径对混凝土强度、和易性有明显影响，但水胶比仍是影响混凝土强度及和易性的主要因素。
- On the basis of the single factor dry rodded test of coarse aggregate, the optimal framework structure of gabbro Sup-16 gradation is given out. 根据粗集料的单因素捣实试验，确定了辉长岩Sup-16级配骨架最优结构。
- 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。
- Uniform Design Method was applied to study the quantitative relationship between optimally dense situation and coarse aggregate composition. 利用马歇尔击实试验确定了粗细集料的分界标准。
- And research the effect of the steel fiber length, the max coarse aggregate size and specimen size on the fracture toughness of SFRC by contrast test. 并作对比试验,研究钢纤维长度、粗骨料最大粒径以及试件尺寸等对混凝土断裂韧度的影响。
- T.C.Hansen and H.Narud, “Strength of Recycled Concrete Made from Crushed Concrete Coarse Aggregate”, Concrete Inter-national/January 1983. 刘玉雯(1993)，"再生混凝土抗压行为之研究"，第十七届全国力学会议，台北，第847-853页。
- The basic principle is the VCA formed by the coarse aggregate is filled with the fine aggregate,the filling,the asphalt and the preconcerted void content. 其基本原理为：矿料级配中粗集料形成的孔隙率由细集料、填料、沥青和预定孔隙率填充。
- The basic principle is the VCA formed by the coarse aggregate is filled with the fine aggregate, the filling, the asphalt and the preconcerted void content. 其基本原理为：矿料级配中粗集料形成的孔隙率由细集料、填料、沥青和预定孔隙率填充。
- There are more pores in the interfacial transition zone of RLC and the status of rubber powder adhered to cement paste is better than that of coarse aggregate. 研究还发现废橡胶粉有一定的引气作用，且废橡胶粉与水泥石界面结合较好。
