? ZL ZY expanders ZL ZY Expansive Agent Executive Standard:? GB 23439-2009 Description ZL ZY series of concrete expansion was successfully developed in sulphoaluminate expansive based on the latest product?. Obtained by calcination kiln clinker expansion, with the right amount of high-quality gypsum and modified components, in accordance with the specific process from grinding together, is a high performance, low ash, low alkali content of sulfur aluminate concrete expansion. Formulated shrinkage-compensating concrete can be reduced due to shrinkage of the concrete structure and shrink harmful cracks, leaks overcome structural problems (structural waterproof), and to resolve long reinforced concrete structure seamless construction problems. Scope ◎ permeability of concrete can be used in the preparation of ground and water requirements of the building: such as basements, subways, tunnels, reservoirs, tanks, dams, etc. ◎ shrinkage-compensating concrete can be used in the preparation of the ground with the requirements of large-scale crack reinforced concrete works, such as concrete floors, runways, garages, parking lot, massive concrete structures and require less contraction joints remain large projects. ◎ preparation impermeable mortar, mortar for damp toilet bath rooms and other water projects. Use ◎ preparation shrinkage-compensating concrete and ordinary concrete mix design is basically the same water-cement ratio is adjusted according to the requirements of concrete slump, usually not more than 0.5. ◎ ZL ZY series of concrete expansion can be directly incorporated into the concrete with cement, sand, stone, etc., due to the use of different dosage (within the mixed, equivalent alternative cementitious materials) as follows:? Waterproof mortar: Volume 6 - 8% about. RC: 6 to 8 percent, according to various project sites dosage should be experimentally determined. Concrete filling: 10 to 12%, such as steel concrete piles, etc. ◎ doped ZL ZY series of concrete strength grade concrete expansion generally not less than C25, cementitious material per square concrete amount ≥300kg, cement grade ≥32.5 #? mortar strength of not less than 10MPa. ◎ than conventional concrete mixing time should be extended from 10 to 30 seconds. Expanders accurate measurement, dosing error ≦ ± 1%. ◎ concrete transport, shock ramming and ordinary concrete, like the earthquake does not leak, due to shock, over shock. After pouring timely maintenance, not less than 14 days, kept moist curing period, especially to strengthen the early conservation, prevent concrete early dehydration. ◎ doped ZL? Reinforced concrete structure spacing ZY series of concrete expansion joints may be extended to more than 60m, using seamless construction technology designed to cancel after pouring belt (with the exception of the settlement after pouring). ◎ ZL? ZY series of concrete expanders can be used with other additives compound, it has pumped early strength, retarding and antifreeze function, but it must be adaptive test. Packaging and storage 1. woven inner plastic packaging bag weighing 50kg 3. 2. 4. Save the moisture storage period of six months, expired physical performance test shall be repeated.