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A platform for research: civil engineering, architecture and urbanism
Preparation method of steam-curing-free concrete prefabricated component
The invention relates to the technical field of steam-curing-free concrete prefabricated parts, and discloses a preparation method of a steam-curing-free concrete prefabricated part, which comprises the following specific steps: S1, binding reinforcing steel bars for a concrete member, and exposing the reinforcing steel bars in the sun; mutually communicated steel pipes with the volume fraction of 10-30% of the steel bars are arranged in the steel bars, and the steel pipes are filled with water; s2, cleaning the surface of the concrete aggregate, and spraying silicon dioxide sol or a sodium silicate solution or a saturated calcium hydroxide solution; s3, cement and water are uniformly stirred, and then the pH value of the mixture is adjusted with acid; s4, uniformly stirring cement clinker, a mineral admixture, gypsum, a product obtained in S2, a product obtained in S3 and a water reducing agent to obtain a mixture, and pouring the mixture into a concrete heat insulation mold; and S5, concrete curing is conducted for 24 h, demolding is conducted, water in the concrete steel pipe is discharged, and then foam concrete is injected into the steel pipe. The problem that energy consumption is large when prefabricated parts are prepared through steam curing is solved.
本发明涉及免蒸养混凝土预制构件技术领域，公开了一种免蒸养混凝土预制构件的制备方法，具体步骤为：S1.绑扎混凝土构件用钢筋，并置于太阳下暴晒；所述钢筋中设置有钢筋体积分数10~30%的相互连通钢管，所述钢管中注满水；S2.洁净混凝土骨料表面，并喷涂二氧化硅溶胶，或硅酸钠溶液，或饱和氢氧化钙溶液；S3.将水泥与水搅拌均匀，然后用酸调整其pH值；S4.将水泥熟料、矿物掺合料、石膏、S2所得物、S3所得物、减水剂搅拌均匀，得混合物，将所述混合物浇筑于混凝土绝热模具中；S5.混凝土养护24h脱模，放掉混凝土钢管内的水，然后将钢管内注入泡沫混凝土。解决了蒸养制备预制构件时能耗大的问题。
Preparation method of steam-curing-free concrete prefabricated component
The invention relates to the technical field of steam-curing-free concrete prefabricated parts, and discloses a preparation method of a steam-curing-free concrete prefabricated part, which comprises the following specific steps: S1, binding reinforcing steel bars for a concrete member, and exposing the reinforcing steel bars in the sun; mutually communicated steel pipes with the volume fraction of 10-30% of the steel bars are arranged in the steel bars, and the steel pipes are filled with water; s2, cleaning the surface of the concrete aggregate, and spraying silicon dioxide sol or a sodium silicate solution or a saturated calcium hydroxide solution; s3, cement and water are uniformly stirred, and then the pH value of the mixture is adjusted with acid; s4, uniformly stirring cement clinker, a mineral admixture, gypsum, a product obtained in S2, a product obtained in S3 and a water reducing agent to obtain a mixture, and pouring the mixture into a concrete heat insulation mold; and S5, concrete curing is conducted for 24 h, demolding is conducted, water in the concrete steel pipe is discharged, and then foam concrete is injected into the steel pipe. The problem that energy consumption is large when prefabricated parts are prepared through steam curing is solved.
本发明涉及免蒸养混凝土预制构件技术领域，公开了一种免蒸养混凝土预制构件的制备方法，具体步骤为：S1.绑扎混凝土构件用钢筋，并置于太阳下暴晒；所述钢筋中设置有钢筋体积分数10~30%的相互连通钢管，所述钢管中注满水；S2.洁净混凝土骨料表面，并喷涂二氧化硅溶胶，或硅酸钠溶液，或饱和氢氧化钙溶液；S3.将水泥与水搅拌均匀，然后用酸调整其pH值；S4.将水泥熟料、矿物掺合料、石膏、S2所得物、S3所得物、减水剂搅拌均匀，得混合物，将所述混合物浇筑于混凝土绝热模具中；S5.混凝土养护24h脱模，放掉混凝土钢管内的水，然后将钢管内注入泡沫混凝土。解决了蒸养制备预制构件时能耗大的问题。
Preparation method of steam-curing-free concrete prefabricated component
一种免蒸养混凝土预制构件的制备方法
LI BAOLIANG (author) / ZHOU ZHANCHENG (author) / CHEN KENAN (author) / YIN DEYU (author) / CHEN JIARUI (author) / LIU SHOUHUA (author) / LI JIE (author) / DONG YUN (author) / LIU ZEJUN (author) / CHENG YONGZHEN (author)
2024-02-20
Patent
Electronic Resource
Chinese
IPC:
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
/
C04B
Kalk
,
LIME
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