Cement repair motar

High strength non shrink repair material Introduction of material High strength repair material is a kind of super early strength concrete structure repair material which is based on cement, high strength material (quartz sand) as the main aggregate, supplemented by polymer powder, high efficiency water-reducing agent, early strength agent, expansion agent, anti-segregation and other materials. High polymer quick structure repair material is artesian, fast hardening, early strength, high strength, no shrinkage, micro expansion; Non-toxic, harmless, no aging, no pollution to water quality and the surrounding environment, good self-densification, zuxiu and other characteristics. High strength repair material is a kind of high performance super early strength concrete structure repair material developed according to the characteristics of concrete structure damage. Material characteristics Super early strength: high early strength, can meet the requirements of rapid repair of concrete structure. No shrinkage: the repair material mixed with high-efficiency expansion agent, can prevent the repair material water loss shrinkage. Durability: inorganic mixture, corrosion resistance, aging resistance. Environmental protection: non-toxic, harmless, no corrosion to steel, no pollution to water quality and the surrounding environment. The technical requirements Technical requirements of high strength repair materials are shown in table 1 Technical specificati*** technical requirements Bridge expansion joint concrete quick repair municipal road inspection well airport runway Initial value of collapse degree ≥270 - ≥220 ≥320 30min retention value ≥ 240-≥ 200 ≥240 Initial value of collapse extension ≥ 650-≥ 500 - 30min retention value ≥550 - ≥400 - The compressive strength (Mpa) 3h ≥10.0 ≥10.0 ≥10.0 ≥10.0 1d ≥30.0 ≥30.0 ≥30.0 ≥30.0 28d ≥60.0 ≥60.0 ≥60.0 Flexural strength (Mpa) 3h ≥4 ≥4 ≥4 ≥4 1d ≥5 ≥5 ≥5 ≥5 28d ≥8 ≥8 ≥8 Bonding strength (MPa) 3h ≥1.5 ≥1.5 ≥1.5 ≥1.5 Free expansion rate % 1d ≥0.02 ≥0.02 ≥0.02 ≥0.02 Scope of application (1) special for expansion joint of bridge A. quick repair of cement concrete p***ement broken plate. B. quick repair of badly damaged concrete structures. (2) quick repair of concrete structure A. Quick repair of damaged components, beams, plates and other parts on the surface of concrete structure. (3) municipal road inspection Wells A. rapid repair of the municipal road inspection well (4) airport runway A. The airport runway should be repaired quickly and the damage should be dealt with urgently Packaging and storage: The packing specification is 25kg±0.5kg, packed with composite paper bags lined with plastic bags. Store in a dry, cool place without dampness for three months. Overdue need to recheck, qualified before use.