文档介绍：Report on Concrete Admixtures for Waterproofing Construction
Structural Engineering Branch Architectural Services Department
By: Raymond W. M. Chan Peter N. L. Ho & Eric P. W. Chan
December 1999 Content Page No.
Introduction 1
Definition of Admixtures 1
Requirements for Water-retaining Structures 1
Effects by Application of Admixtures in Water Retaining 4 Structures
Types of Admixtures 5
Retarding/Water Reducing Admixtures 5 Materials 6 Effects of Retarding/Water Reducing Admixtures 6 on Concrete Properties
Superplasticizers 8 Materials 9 Effects of Superplasticizers on Concrete Properties 9
Polymer Admixtures 11 Materials 11 Effects of Polymer Admixtures on Concrete 12 Properties
Mineral Admixtures 12 Materials 13 Effects of Mineral Admixtures on Concrete 14 Properties Silica Fume 16 Rice Husk Ash 18 Pulverized Fuel Ash 18 Ground Granulated Blastfurnace Slag 19 Other Slags 20 use of Mineral Admixtures 20
Air-Entraining Admixtures 20 Materials 20 Effects of Air-Entraining Admixtures on Concrete 21 Properties Page No.
Waterproofing Admixtures 24 Integral Waterproofing Admixtures 24 Hydrophobic and Pore Blocking Ingredient 24
Admixture Products 27 Retarding to BS5075: Part 1 27 Normal Water Reducing to BS5075: Part 1 27 Accelerating Water Reducing to BS5075: Part 1 28 Retarding Water Reducing to BS5075: Part 1 28 Air Entraining to BS5075: Part 2 28 Superplasticizers to BS5075: Part 3 29 Retarding Superplasticizers to