Emulsified pitch and preparing method

Abstract

The invention provides an emulsified asphalt, which has the compositions of bitumen, surfactant, additives and water, the content of each component as follows : Asphalt 22 -55% surfactant: cationic surfactant 1.0 - 15 %, non-ionic surfactant 1.0 -20%; auxiliaries 0.1-8%; cushion for water; the ratios are according to the percentage of weight.. The invention of products, in lines with its performance as 'People's Republic of China Ministry of Railways' plate ballastless track emulsified asphalt cement mortar CA technical conditions, ' In the practical use ,which is to avoid CA mortar (that is, cement -- Asphalt mortar) have Segregation and enable CA mortar have a appropriate time to fully meet the needs of the construction, so that the products of this invention can be effectively used for high-speed railway plate ballastless track in the CA mortar.

Description

technical field

[0001] The invention relates to a high-speed railway slab ballastless track, in particular to an emulsified asphalt used in cement-asphalt mortar (also known as CA mortar) for a high-speed railway slab ballastless track. Background technique

[0002] In the construction of high-speed railways, a large number of slab ballastless technologies are used, and CA mortar in this technology is one of the core technologies. And emulsified asphalt is one of the main components in CA mortar. However, the existing emulsified asphalt does not consider the special requirements of CA mortar in the application of high-speed railway slab ballastless track, such as fluidity, working time, early strength and weather resistance, so if it is used as one of the main components in In CA mortar, problems such as short working time, insufficient strength, and mortar segregation are prone to occur, and cannot meet the "Technical Conditions for Emulsified Asphalt Cement CA Mortar of S...