Based on structure layer modulus the material composition design requirements for cold recycled mixtures was put forward through finite element analysis of cement and emulsified asphalt cold recycled upper base.

The article sets forth the epoxy resin grouting technique from the aspects of the suitable range,material composition,mixture ratio,preparation technology and construction technology,which can be referred for the similar projects.

In order to further explain the influences of material composition on fatigue properties , relationships between material composition、several parameters and fatigue properties are obtained based on summarizing the available experimental results about fatigue ex

This paper introduces the definition and character of high performance concrete,analyzes the elementary demand of its component material,accounts the common principle of selecting material,and investigates high performance concrete from the testing.

Chiefly analyze the substance composition, formation structure, main properties and medical values; interpret the value for exploiting this fiber.

Having made a great deal of survey, author have researched soft rocks engineering geological properties, substance composition and structure.

Based on the 314 zone of blow filled soft clay engineering in Nanyou of Shenzhen,the paper studies the substance composition, microstructure and engineering characteristics of the blow filled soft clay.

In this article, author systematically discussed material composition and content of Au of gold ore, quality, occurrence state and grain size of Au, and put forward comprehensive processing method which was featured floated sulfide, native gold and electrum as main methods in this area.