Highway Bridges prestressed pipe pressure slurry

Highway Bridges prestressed pipe pressure slurry highway Bridges prestressed pipe pulp price of highway bridge prestressed pipe pressure slurry in the tensioning prestressed technique in construction, how to make the pipe grouting in the prestressed pipe pressure slurry is close-grained, not hierarchical, uniform strength, steel hinge line does not rust, small loss of prestress, Bridges and other structural engineering in recent years is to use more than 100, it is necessary to consider the problem. The United Nations industrial development to arrange the world information promotion center, the ministry of construction of concrete engineering research center, China building materials science research institute jointly developed method of post-tensioned prestressed pipe pressure slurry and grouting materials, ettringite ( C3A. 3CaSO4 . 32H2O) Crystals to swell, supplemented by inorganic and organic components, stratification, exudation is not after grouting, uniform strength, volume swell, cohesive force is strong, the steel does not rust, to ensure the quality of pipe grouting, represents the most advanced skills prestressed pipe pressure slurry of cement grouting material. Prestressed pipe pressure slurry description of high-performance H - co. , LTD 60 prestressed pipe pressure slurry is inorganic function material is given priority to,, and compounded with organic polymer function data of new and beautiful seam an agent. It is nontoxic, nonflammable, and does not contain chlorine or other corrosive elements. Products with high efficiency water reducing, enhancement, and drop exudation multiple results. Together, the product can cause moderate swell in hardening cement mixing content in not period of systolic blood pressure slurry with the seam an agent with 8 ~ 12% with general micro swell grouting material made of cement mixing, compared with general cement slurry pressure, have good liquidity, exudation, layering, and grouting plump character of early strength, micro swell, and can be a one-time grouting construction, no pore density of slurry in pipe, prestressed steel is not corroded, and concrete bonding firm. The small gap higher liquidity and filling grouting. Prestressed pipe pressure ratio of slurry through experiment, based on the latest specification 2011 the ministry of railways, the distribution of prestressed pipe pressure slurry. Simply live water mixing, simple operation, stable performance, not because using grouting beautiful seam an agent and the exudation of cement is not adapt to the present, retarded, no swelling, etc.