In older to resolve the problem of the great amount of cement and the high cost of non-sand cement grounting pile at parent, after testing studies, it is demonstrated that if fly ash is mixed into non-sand concrete by 15%￣ 20% amount of cement, and water cement ratio equal or less than 0.
为解决当前无砂混凝上钻孔压浆桩的水泥用量大、工程造价高等问题，经试验研究表明，当在无砂混凝土中掺入占水泥用量１５％～２０％的粉煤灰，水灰比等于或小于０。
Mix design of the no-fines concrete grouting pile;
无砂混凝土灌注桩配合比设计
This article adopts orthogonal experiment method to carry out research on resistance press and percolation of no-fines concrete, and mensurates porosity and effective porosity of no-finesconcrete and discusses the formula of calculating percolation co-efficient and analyses the factors that have effect on intensity and percolation of no-fines concrete, the mix proportion for practice is raised.
采用正交试验法对无砂混凝土进行抗压强度、渗透试验研究并测定无砂混凝土的孔隙率和有效孔隙率 ,讨论无砂混凝土渗透系数的计算公式 ,分析影响无砂混凝土强度和渗透性的因素 ,提出无砂混凝土应用的推荐配合
In this paper performances such as strength,impermeability & frost resistance of silica fume concrete,HF high strength wear resistant fly ash & steel shot concrete are compared to find out a scour resistant & wear-proof material suitable to be used at hydraulic works on a mountainous river with hi.
通过对硅粉混凝土、HF高强耐磨粉煤灰混凝土和铁钢沙混凝土进行强度、抗渗、抗冻等性能的比较 ,以期找到一种适合山区多泥沙河流的抗冲耐磨材料。
Application of Caisson with Concrete without Sand in the Dewatering Engineering of Tailing Dam
无砂混凝土沉井在尾矿坝降水工程中的应用
The gravel ingredient of concrete.
石碴组成混凝土的砂料
concrete, sand, stone and cement proportioner
混凝土、砂、石、水泥配料机
The different cement content porous concrete drying shrinkage trial research
不同水泥掺量的无砂多孔混凝土干燥收缩试验研究
The Research on the Performance of Artificial Sand High Performance Concrete and Natural Fine Sand Concrete
人工砂高性能混凝土和天然细砂混凝土的性能研究
Research of wind-quenched granulated slag grit as a substitute of sand in concrete;
风淬钢渣砂在混凝土中替代黄砂的试验研究
The Development and Current Situation of Machine-Made Sand and thereof High Strength Concrete
国内外机制砂和机制砂高强混凝土现状及发展
Specification for mixing and application of concrete with tenuous sand
特细砂混凝土配制及应用规程
Technical requirements and test methods of sand for ordinary concrete
普通混凝土用砂质量标准及检验方法
Concrete is composed of cement, sand and gravel mixed with water.
混凝土由水泥、砂、石子与水掺和而构成。
Properties of Wire Mesh/Steel Bar Mortar Strengthening Reinforced Concrete Beam;
钢丝网钢筋砂浆加固混凝土梁的性能
Study on Preparation and Properties of the C80 Manufactured Sand Concrete;
C80机制砂混凝土的配制与性能研究
Study on Steel Reinforced Concrete Beam is Strengthened with Steel Strand and Anticorrosive Mortar;
钢绞线防腐砂浆加固混凝土梁的研究
Study on Application of Mechanism Sand in High Performance Concrete;
机制砂在高性能混凝土中的应用研究
Experiment and Rsearch of Ultra-Fine Sand Pumping Concrete Shrinkage Characteristics
特细砂泵送混凝土收缩特性试验研究
The Application Perspective of Sea Sand in Concrete of Fujian
海砂在福建地区混凝土中的应用前景
Mix Design and Static Test of C50 Concrete Incorporated With Processed Sand for T Beam
C50T型梁机制砂混凝土的配合比设计
Application study on superfine tail mineral sand used in ready-mixed concrete
尾矿特细砂在商品混凝土中应用探讨