1. Chapter 8 Water Proofing Material

2.  Introduction  Composite  Colloid structure  Technical property  Standards and choices Petroleum Asphalt §8.2 Basic Components of Water Proofing Material

3. Colloid Structure Fig.8.2.1 Sketch map of colloid structure sol type sol-gel typegel type 1- 1- micelle 2-particial 3- oil component 4- external film 5- asphaltene 6-gel particial 7-combined oil component Sketch map of colloid structure are shown in Fig.8.2.1, Colloid structure types and characteristics are shown in Tab.8.2.2.

4. Structur e types Composite and structure characteristics Properties sol type more oil components and resin, thick external film of the micelle, free movement among micelles sol-gel type closer among micelles and have attractive force each other Between sol type and gel type gel type Less oil components and resin, thin external film of the micelle, difficult movement among micelles better elasticity and viscosity, low temperature stability, mobility and plasticity Tab.8.2.2 Types and Characteristics of Colloid Structure