Highway roadbed cement and application method thereof

Abstract

The invention discloses highway roadbed cement and an application method thereof. The highway roadbed cement is prepared from the following raw materials by weight: 50-70 parts of cement clinker, 15-25 parts of blast furnace slag, 5-10 parts of modified ardealite, 5-7 parts of dry fly ash, 5-8 parts of a mixed retarder and 2-4 parts of nano-montmorillonite, wherein the mixed retarder is organic carboxylate and inorganic zinc salt, and the inorganic zinc salt comprises zinc chloride, zinc sulfate and zinc carbonate. In the preparation process of the cement, the mixed retarder capable of prolonging the setting rate of the cement is added, so the rate of setting among the internal components of the cement is properly reduced; and thus, when a worker paves the cement on a highway roadbed, enough time can be provided for timely paving and tidying cement paved on a highway roadbed surface, the surface of the cement paved on the roadbed surface is more horizontal and neat after the cement is solidified, and the cement paving quality of the highway roadbed surface is improved.

Description

technical field [0001] The invention relates to the technical field of high-speed roadbed cement, in particular to a high-speed roadbed cement and an application method thereof. Background technique [0002] Due to the birth of cement, people's construction technology has been greatly improved. Cement is made of limestone and clay as the main raw materials. After crushing, batching, and grinding, raw materials are made into raw materials, and then fed into cement kilns to calcinate clinker. It is made by adding appropriate amount of gypsum to clinker, sometimes mixed with mixed materials or admixtures, and ground. The application of cement is not only in house construction, but also plays a vital role in the process of road construction. [0003] A large amount of cement will be used in the construction of expressways, and expressways are a symbol of modernization and a manifestation of a country's comprehensive national strength. Its construction and operation involve all a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-speed subgrade cement and its application method, to solve the problem that the cement used in the construction of the existing high-speed subgrade has good coagulation. For large-area cement laying, if the cement solidifies faster, it is not conducive to workers. For the paving and finishing of roadbed cement, if the cement solidifies too fast, the labor intensity of the workers must be increased. If the roadbed cement is not treated in time, it will also cause the unevenness of the formed high-speed roadbed.

Images