Concrete admixtures are indispensable for large-scale projects
Concrete admixtures can not only improve the concrete mixing material variability, saving concrete setting time, hardening properties, but also improve the durability of concrete, indispensable in engineering and construction.
I. Road construction
In highway construction, the performance of ordinary cement concrete is difficult to meet the construction requirements, and admixtures are often introduced to improve the performance of cement concrete. Highway construction requires a variety of additives, large amount of mixing, is an important application of concrete additives.
II. Bridge engineering
In the application of concrete in bridge construction, the addition of admixtures is very necessary to maximize the performance of concrete, to protect the quality of the project and reduce construction costs. Across the Pearl River Estuary Lingdingyang sea area of the Hong Kong-Zhuhai-Macao Bridge large scale, high standards, complex technology, easy to corrode the environment seriously affects the durability of the project's concrete, the project project construction by adding admixtures to improve the performance of the bridge concrete, improve its impermeability, waterproofing and densification to enhance the quality of the project.
III. Airport construction
Airports, as transportation hubs, are highly functional, have high carrying requirements, large construction areas, and are difficult to build comprehensively. High requirements for vibration damping and vibration isolation of concrete, in response to this situation, the construction of the project especially uses anti-sensitive admixture products to accelerate the fluidity of concrete and enhance the ease of construction.
IV. Railroad construction
Rapid passenger dedicated line high-speed moving car load and impact force, precast concrete bridges, bearing platforms, piers and other main structures are mostly used with high durability, high volumetric stability, high resistance to chlorine ion permeability of concrete materials, concrete preparation process, often blended with polycarboxylic acid system of high-performance water reducing agent, to enhance the characteristics of the concrete, to meet the requirements of the construction of passenger dedicated line of technical specifications.