A kind of non-steam curing concrete prefabricated component and its forming method

Abstract

The invention relates to a steaming-free concrete prefabricated assembly. The steaming-free concrete prefabricated assembly is characterized in that an inorganic-organic composite early strength agentand a nucleus-type early strength agent are simultaneously added to a concrete prefabricated assembly raw material according to a certain proportion to improve the early strength of the concrete prefabricated assembly, so that a steaming process can be avoided, energy consumption is reduced, energy is saved, the internal compactness of the concrete is improved, the flatness of the concrete surface is increased, crack formation is avoided, the later strength of the concrete is maintained, and the overall strength of the concrete is improved.

Description

technical field

[0001] The invention relates to the field of building materials, in particular to a non-steam curing concrete prefabricated component and a forming method thereof. Background technique

[0002] In response to the "Guiding Opinions on Vigorously Developing Prefabricated Buildings" promulgated by the State Council, "it is necessary to develop prefabricated concrete structures, steel structures and modern wooden structures and other prefabricated buildings according to local conditions, and strive to make prefabricated buildings account for new construction in about 10 years. The proportion of the building area should reach 30%". With the increasing number of prefabricated buildings, more and more concrete prefabricated components are required. In order to improve the early strength and remove the formwork earlier, the existing technology Generally, steam curing process is required, but the steam curing process has the following disadvantages:

[0003] (1) It n...

Examples

Embodiment 1

[0046] Such as figure 1 As shown, a non-steamed concrete prefabricated component, at the same time, the inorganic-organic composite accelerator and the crystal nucleus type accelerator are added to the raw material of the concrete prefabricated component in a certain proportion to improve its early strength, wherein each cubic meter of concrete Prefabricated element raw materials are formed from the following components:

[0047] 42.5 Ordinary Portland cement: 227.5Kg;

[0048] Inorganic-organic composite early strength agent: 1%~5% of the total mass of cement;

[0049] Crystal nucleation early strength agent: 10~15% of the total mass of cement;

[0050] Sand: 750Kg;

[0051]Pebbles: 290Kg;

[0052] Large stones: 760Kg;

[0053] Water: 150Kg;

[0054] Superplasticizer: 3Kg;

[0055] The preparation method of the raw material of the non-steamed concrete prefabricated component includes the following steps: use a forced mixer, first dry mix and then wet mix, first add lar...

technical field

[0001] The invention relates to the field of building materials, in particular to a non-steam curing concrete prefabricated component and a forming method thereof. Background technique

[0002] In response to the "Guiding Opinions on Vigorously Developing Prefabricated Buildings" promulgated by the State Council, "it is necessary to develop prefabricated concrete structures, steel structures and modern wooden structures and other prefabricated buildings according to local conditions, and strive to make prefabricated buildings account for new construction in about 10 years. The proportion of the building area should reach 30%". With the increasing number of prefabricated buildings, more and more concrete prefabricated components are required. In order to improve the early strength and remove the formwork earlier, the existing technology Generally, steam curing process is required, but the steam curing process has the following disadvantages:

[0003] (1) It n...

Examples

Embodiment 1

[0046] Such as figure 1 As shown, a non-steamed concrete prefabricated component, at the same time, the inorganic-organic composite accelerator and the crystal nucleus type accelerator are added to the raw material of the concrete prefabricated component in a certain proportion to improve its early strength, wherein each cubic meter of concrete Prefabricated element raw materials are formed from the following components:

[0047] 42.5 Ordinary Portland cement: 227.5Kg;

[0048] Inorganic-organic composite early strength agent: 1%~5% of the total mass of cement;

[0049] Crystal nucleation early strength agent: 10~15% of the total mass of cement;

[0050] Sand: 750Kg;

[0051]Pebbles: 290Kg;

[0052] Large stones: 760Kg;

[0053] Water: 150Kg;

[0054] Superplasticizer: 3Kg;

[0055] The preparation method of the raw material of the non-steamed concrete prefabricated component includes the following steps: use a forced mixer, first dry mix and then wet mix, first add lar...

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