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Shenzhen Jin Jianda Construction Co., Ltd. Contact: Mr. Zeng Tel: 18719060906
E-mail: 891339018@qq.com
Address: Bao'an District of Shenzhen City manhole streets New Town Plaza, Building A, Room 1508

On the conservation of foam concrete
Edit:Shenzhen Jin Jian Da Construction Co., Ltd   PublicDate:2016-11-30

Shenzhen foamed concrete manufacturers manufacturers of lightweight aggregate concrete provides you with some foam concrete curing.
Foam concrete conservation of nature conservation can be divided into cover water conservation and plastic film in two ways.
(1) cover water conservation based on the outside temperature should be within 3-12h of the finished pouring concrete with straw, Reed mat, sacks, sawdust, wet soil and wet sand or other suitable material of concrete cover, and regular watering keep moist. Date of foam concrete water conservation, Portland cement, Portland cement and slag cement concrete mix shall not be less than 7 nights. ; Mixing of retarding admixtures or impermeable concrete requirements, shall not be less than 14 days and nights when using alumina cement shall be not less than 3 nights. Daily of watering of times has can keep concrete has enough of wet state suitable, dang temperatures in 15 ° c above Shi, in concrete pouring after of 3 day and night in the, day at least each 3 hours watering once, night also should watering has two times, in yihou of conservation in the, daily at least watering 3 times around (certainly Dang temperatures dry of when can appropriate of increased watering of times).
For larger area (or volume) of concrete should be used "water conservation" tank within the class of works to be removed mold, concrete reaches a certain intensity of water conservation; or for underground structure basis, again brushing the surface of bitumen emulsions or backfill with soil instead of water conservation.
(2) plastic film Wei conservation refers to the plastic film covering the concrete away from the air, the water is not evaporated, complete hydration of cement concrete moisture setting has been reached. This approach will directly drawing mould for plastic cover on the surface of the concrete, or plastic emulsion sprayed on the concrete surface, wait until after the emulsion of volatile, in the concrete surface with a layer of plastic film to make concrete and air, making it no longer evaporate complete hydration of moisture in the concrete. Disadvantages of sprayed plastic film conservation is 28D low concrete strength around 8%, again because the film is thin, cannot fully meet the role of insulation, insulation, so in the summer when the Sun facility is to be added in this way (not less than 24h), or can result in silky foam concrete cracks.

Above is the Jin Jianda conservation knowledge to you.

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