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Anti-segregation premixed pump concrete and preparation process thereof
The invention relates to the technical field of concrete, and particularly discloses anti-segregation premixed pump concrete and a preparation process thereof. The anti-segregation premixed pump concrete comprises the following components in parts by mass: 415-555 parts of cement; 130 to 165 parts of water; 50 to 70 parts of fly ash; 10-30 parts of a water reducing agent; 680 to 770 parts of fine aggregate; 1000 to 1100 parts of coarse aggregate; 2 to 5 parts of sodium hexametaphosphate; 3-6 parts of ferrous carbonate; and 1-3 parts of cadmium sulfate. The preparation process comprises the following steps: 1) mixing sodium hexametaphosphate, ferrous carbonate, cadmium sulfate and water, and stirring at 75-85 DEG C to obtain an additive solution; step 2) uniformly mixing cement, fly ash and fine aggregate, and stirring to react for 1-2 hours to obtain mixed slurry; and (3) adding a water reducing agent and coarse aggregate into the mixed slurry, and uniformly mixing to obtain the anti-segregation premixed pump concrete. The anti-segregation premixed pump concrete provided by the invention has relatively good flowability, and is not easy to segregate in the stirring and transporting process of the anti-segregation premixed pump concrete.
本申请涉及混凝土技术领域，具体公开了一种抗离析的预拌泵送混凝土及其制备工艺。抗离析的预拌泵送混凝土包括以下质量份数的组分：水泥415～555份；水130～165份；粉煤灰50～70份；减水剂10～30份；细骨料680～770份；粗骨料1000～1100份；六偏磷酸钠2～5份；碳酸亚铁3～6份；硫酸镉1～3份。其制备工艺包括以下步骤：步骤1)将六偏磷酸钠、碳酸亚铁、硫酸镉与水混合，在75～85℃条件下搅拌，得到添加液；步骤2)将水泥、粉煤灰、细骨料混合均匀，搅拌反应1～2h，得到混合浆液；步骤3)混合浆液中加入减水剂以及粗骨料，混合均匀，得到抗离析的预拌泵送混凝土。本申请的抗离析的预拌泵送混凝土具有较好的流动性，而且在其搅拌运输过程中不容易发生离析现象。
Anti-segregation premixed pump concrete and preparation process thereof
The invention relates to the technical field of concrete, and particularly discloses anti-segregation premixed pump concrete and a preparation process thereof. The anti-segregation premixed pump concrete comprises the following components in parts by mass: 415-555 parts of cement; 130 to 165 parts of water; 50 to 70 parts of fly ash; 10-30 parts of a water reducing agent; 680 to 770 parts of fine aggregate; 1000 to 1100 parts of coarse aggregate; 2 to 5 parts of sodium hexametaphosphate; 3-6 parts of ferrous carbonate; and 1-3 parts of cadmium sulfate. The preparation process comprises the following steps: 1) mixing sodium hexametaphosphate, ferrous carbonate, cadmium sulfate and water, and stirring at 75-85 DEG C to obtain an additive solution; step 2) uniformly mixing cement, fly ash and fine aggregate, and stirring to react for 1-2 hours to obtain mixed slurry; and (3) adding a water reducing agent and coarse aggregate into the mixed slurry, and uniformly mixing to obtain the anti-segregation premixed pump concrete. The anti-segregation premixed pump concrete provided by the invention has relatively good flowability, and is not easy to segregate in the stirring and transporting process of the anti-segregation premixed pump concrete.
本申请涉及混凝土技术领域，具体公开了一种抗离析的预拌泵送混凝土及其制备工艺。抗离析的预拌泵送混凝土包括以下质量份数的组分：水泥415～555份；水130～165份；粉煤灰50～70份；减水剂10～30份；细骨料680～770份；粗骨料1000～1100份；六偏磷酸钠2～5份；碳酸亚铁3～6份；硫酸镉1～3份。其制备工艺包括以下步骤：步骤1)将六偏磷酸钠、碳酸亚铁、硫酸镉与水混合，在75～85℃条件下搅拌，得到添加液；步骤2)将水泥、粉煤灰、细骨料混合均匀，搅拌反应1～2h，得到混合浆液；步骤3)混合浆液中加入减水剂以及粗骨料，混合均匀，得到抗离析的预拌泵送混凝土。本申请的抗离析的预拌泵送混凝土具有较好的流动性，而且在其搅拌运输过程中不容易发生离析现象。
Anti-segregation premixed pump concrete and preparation process thereof
一种抗离析的预拌泵送混凝土及其制备工艺
LIN SHENJIE (author) / PENG QIAOJUN (author) / LUO YANG (author)
2023-03-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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