Microsilica on properties of concrete repair materials

Gold companies have a large number of plant roads reinforced concrete structure, in which the plant every day, a large amount of internal plant raw fuel transporter, lifting, storage, and transport of these raw materials and fuels, lifting, storage, many of which are required as a concrete structure support,
These concrete daily load is great, but also the inevitable result of the support of the original fuel transport, lifting, storage of damaged concrete structures, reinforced concrete structures on the surface once they are damaged, there would bare reinforced leak over time will rust oxidation, it will affect the entire structure, and even affect the safety of the entire concrete structure, so the concrete surface repair damaged and soon reached the intensity of use is particularly important, otherwise it will affect the to the normal production of metallurgical enterprises.
Concrete repair material is used in the repair of concrete surfaces damaged a building material, as a repair material, the objective requirements of its high early strength, good durability, good surface finish. Currently in concrete repair materials were mostly used fly ash or blast furnace slag, fly ash and blast furnace slag in concrete repair materials excessive dosage will reduce the early strength of concrete repair materials, and reduce its wear resistance, Use ineffective, and do not adapt to the current actual situation of metallurgical enterprises,
Currently, people in the study patching compound mixed with silica relatively few people on the concrete repair materials have become increasingly demanding, which requires a higher early strength, but also requires a better constructability, also called better surface effect, which in this study of microsilica addition on the performance of repair materials, through a number of experiments confirmed that silica can increase the number of performance concrete repair materials, repair materials were mixed with silica in the meet concrete repair materials currently increasingly stringent requirements.