Concrete building block and preparation method thereof

A technology for adding blocks and concrete, applied in the field of adding concrete blocks and their preparation, can solve problems such as unfavorable handling, heavy workload, unfavorable contact surface maintenance, etc., and achieve the effects of avoiding overweight, high product strength, and easy loading, unloading and handling.

Active Publication Date: 2021-03-02
固始佳兴新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing concrete block curing device has the following problems: 1. If the concrete blocks are placed in a row on the curing frame, it is convenient to load and unload and carry, but adjacent concrete blocks are close together, which is not conducive to the maintenance of the contact surface; 2. If Concrete blocks are maintained separately, the workload is heavy, and it is not conducive to handling

Method used

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  • Concrete building block and preparation method thereof
  • Concrete building block and preparation method thereof
  • Concrete building block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A concrete block is prepared from the following raw materials in parts by weight: 900 parts of iron ore tailings, 600 parts of fly ash, 250 parts of lime, 120 parts of cement and 1.95 parts of aluminum powder.

[0038] The preparation method of described concrete plus block, comprises the following steps:

[0039] (1) The iron ore tailings are ball-milled to pulp, and after the ball-milling is completed, the mixed fly ash is prepared into a mortar with a specific gravity of 1.6kg / L;

[0040] (2) Lime, cement and aluminum powder are added to the mortar in step (1) and stirred, and the stirring is carried out for 150s to obtain the mixture; at this time, the mixture is dispersed mutually to make the uniformity of the slurry better, and the stirring result is right Product quality has a certain influence;

[0041] (3) pouring the mixture of step (3) into a mold for molding, the temperature during pouring is controlled at 39°C, and 2.5 hours of constant temperature and sta...

Embodiment 2

[0045] A concrete block is prepared from the following raw materials in parts by weight: 950 parts of iron ore tailings, 650 parts of fly ash, 240 parts of lime, 80 parts of cement and 1.8 parts of aluminum powder.

[0046] The preparation method of described concrete plus block, comprises the following steps:

[0047] (1) The iron ore tailings are ball-milled to pulp, and after the ball-milling is completed, the mixed fly ash is prepared into a mortar with a specific gravity of 1.6kg / L;

[0048](2) Lime, cement and aluminum powder are added to the mortar in step (1) and stirred, and the stirring is carried out for 150s to obtain the mixture; at this time, the mixture is dispersed mutually to make the uniformity of the slurry better, and the stirring result is right Product quality has a certain influence;

[0049] (3) pour the mixture of step (3) into a mold for molding, the temperature during pouring is controlled at 37°C, and a constant temperature and static curing of 55°...

Embodiment 3

[0053] A concrete block is prepared from the following raw materials in parts by weight: 1000 parts of iron ore tailings, 700 parts of fly ash, 280 parts of lime, 100 parts of cement and 1.9 parts of aluminum powder.

[0054] The preparation method of described concrete plus block, comprises the following steps:

[0055] (1) The iron ore tailings are ball-milled to pulp, and after the ball-milling is completed, the mixed fly ash is prepared into a mortar with a specific gravity of 1.6kg / L;

[0056] (2) Lime, cement and aluminum powder are added to the mortar in step (1) and stirred, and the stirring is carried out for 150s to obtain the mixture; at this time, the mixture is dispersed mutually to make the uniformity of the slurry better, and the stirring result is right Product quality has a certain influence;

[0057] (3) pouring the mixture of step (3) into a mold for molding, the temperature during pouring is controlled at 36°C, and a constant temperature static curing of 5...

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Abstract

The invention provides a concrete building block and a preparation method thereof. The concrete building block is prepared from the following raw materials in parts by weight: 900-1000 parts of iron ore tailings, 600-700 parts of fly ash, 240-280 parts of lime, 80-120 parts of cement and 1.8-1.95 parts of aluminum powder. Iron ore tailings are used as raw materials, the pouring temperature is controlled to be 36-39 DEG C, through cooperation of all the raw materials and design of a processing technology, a product meeting the national standard B05 / B06 can be produced, the pore structure of theproduct is uniform, the strength of the product is higher than that of a building block produced through a common technology, and the problem that the building block is overweight is avoided.

Description

technical field [0001] The invention relates to the technical field of autoclaved aerated concrete blocks, in particular to a concrete plus block and a preparation method thereof. Background technique [0002] Concrete plus block is the abbreviation of autoclaved aerated concrete block, also known as concrete block, which is a kind of porous silicate concrete. Under the interaction, the hydrothermal synthesis reaction between calcium oxide and silicon dioxide results in the production of new hydration products. Due to the low silicon content in the existing concrete blocks, the strength of the product is poor, and the autoclaved aerated fly ash (blocks), etc., have not been accepted by the market due to some defects such as substandard testing indicators. look good. [0003] At the same time, due to the impact of sand and gravel control in recent years, the price of sand has gradually increased, which has exceeded the tolerance of most aerated block manufacturers who use r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/10C04B40/02B28B1/14B28B11/24B28B17/00C04B18/12
CPCC04B28/10C04B40/024B28B1/14B28B11/245B28B17/00C04B7/00C04B18/12C04B18/08C04B22/04C04B38/02Y02W30/91
Inventor 胡启成
Owner 固始佳兴新型建材有限公司
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