水工混凝土配合比设计规程电子书籍txtpdf网盘下载网站

内容概要

During the piling process, this Standard not only absorbssome relevant contents in the similar domestic and internationalstandards that are suitable for the application of hydraulic concrete inChina, but also emphasizes the charteristics of mass hydraulioncrete* With the advancement of hydraulic concrete technology, theuse of admixtures and additives has bee more and more popular,and widespread attentions have been paid to the durability of concrete*Therefore, changes of stipulations in this Standard are more focusedon the use of admixtures, and additives and the durability of concrete*

书籍目录

Foreword1 Scope2 Normative References3 Terms and Symbols　3*1 Terms　3*2 Symbols4 General5 Determination of Required Average Compressive Strength6 Selection of Basic Parameters for Mix Design 6*1 Water-eementitious material ratio 6*2 Water Content　6*3 Aggregate Gradation and Sand Ratio　6*4 Admixture and Additive Content7 Calculation of Concrete Mix Proportion8 Trial Mixing, Adjustment and Determination of Concrete　Mix Proportion　8*1 Trial Mixing　8*2 Adjustment　8*3 Detenmnation9 Mix Design of Special Concrete10 Mix Design of Hydranlic Mortar　10*1 Basic Principles of Mortar Mix Design　10*2 Determination of Required Average Compressive Strength　10*3 Calculation of Mortar Mix Proportion　10*4 Trial Mixing, Adjustment and Determination of Mortar Mix Proportion

章节摘录

6　Selection of Basic Parameters for Mix Design6*1　water-cementitious material ratio6*1*1　The water-cementitions material ratio shall be determined bytest aording to the design requirements for the concrete strength,and shall ply with the stipulations in DL/T 5144*6*1*2　The water-cementitious material ratio shall also meet thedesign requirements of impermeability and frt resistance grade* Theimpermeability and frt resistance grades are related to types ofcement, water-cementitious material ratio, types and contents ofadmixtures and additives, curing age and so on* For the large andmedium projects, the relevant curve shall be established by test andthe water-cementitious material ratio should be determined aordingto the test result and meet the requirements of the designed technicalindices* If test data are not available, the water-cementitious materialratio for anti-freezing concrete should be determined aording to thestipulations in DL／T 5082, based on frt resistance grade and themaximum aggregate size*6*1*3　For the concrete mixed with additives, the maximum water-cementitious material ratio shall be lowered appropriately anddetermined by test*

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《水工混凝土配合比设计规程(DL/T 5330-2005)》由中国电力出版社出版。

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