cement accelerating agent
Introduced:
quick pour agent: incorporation Concrete can cause the concrete to condense quickly and harden External Agent . Powder solid, can make the concrete in the 5min in the beginning of condensation, the final coagulation in 10min . In order to achieve the purpose of fast repair or concrete rapid condensation in the well Lane . is an indispensable additive in shotcrete construction method . Its main components are aluminum oxide clinker ( bauxite , soda ash , quicklime it 's made from a proportional burn. clinker ) is made of fine grinding. Their role is to accelerate the hydration hardening of cement , in a short period of time to form enough strength to ensure the special construction requirements .
Use:
Quick-setting agent is mainly suitable for highway, railway, bridge, mine, well lane, tunnel, National defense, Water Conservancy and other projects of spray construction and Leak-proof plugging, ground rapid construction and emergency rescue works.
Technical Index:
1 , fineness (%) ＜ 12.6
2 , setting time: initial coagulation (min)2-3; Final coagulation (min)8-10
3 , water content (%) ＜2
4 ,ld compressive strength (Mpa) ≥ 8
5 ,28d compressive strength ratio (%)(Mpa) ≥75
How to use and precautions:
1 , before use, it is necessary to do the adaptability test of the cement used in the construction, to determine the Dosage.
2 , construction, water-cement ratio control between the 0.40-0.50 , water-cement ratio is too large, will prolong the setting time, affect the use Effect.
3 , when applied to spray construction, sand, gravel, cement, quick-setting agents should be mixed into a mixture, adjust the water-cement ratio, immediately spray. The dry mix mixture is too long (＞20 minutes), otherwise it will affect the coagulation effect and reduce the injection strength.
4 , poor construction conditions or poor adaptability of cement and this agent, need to test to determine or appropriate increase in dosage, the approximate scope of application of 3-20.
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Henan Guangda Refractories Co., Ltd is a high-tech enterprise which is dedicated to the refractory materials research and development, production, trade and engineering. Our company owns a professional technical research and development team that has been engaged in the refractory materials for decade years, owns advanced production equipments and testing equipment with the excellent marketing team. Our company has a sound management system for the market development and after-sale service. We will, as always, insist on the principle of quality first, customer first, putting quality and customers first, wholeheartedly provide the best quality......
