Wheat straw fermented concrete block and preparation method thereof

A technology of concrete blocks and wheat straw, applied in excavation, construction, infrastructure engineering, etc., can solve the problems of toxicity, soil erosion, etc., and achieve the effect of light weight, good nutrient conditions, nutrition and mechanical strength coordination

Active Publication Date: 2017-11-03
HENAN POLYTECHNIC UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Chinese patent document CN 104987121B discloses a nutritional foaming coagulation grass planting block and its preparation method. There is a groove in the middle of the foam coagulation framework, and the foaming and solidification nutrient sludge module is arranged in the groove of the foam coagulation framework. In this invention, there are gaps in the foam coagulation framework as a whole, and a long time will lead to water and soil pollution. loss; at the same time, sodium lauryl sulfate is used as a foaming agent in the process of preparing blocks in this invention, and the foaming agent has certain toxicity

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  • Wheat straw fermented concrete block and preparation method thereof
  • Wheat straw fermented concrete block and preparation method thereof

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Embodiment 1

[0044] Such as Figure 1~2 As shown, a wheat straw fermented concrete block in this embodiment is composed of a hollow porous concrete block skeleton and a straw fermentation module. The hollow porous concrete block skeleton 1 is provided with a groove in the middle, and the straw fermentation module 2 Set in the groove of the hollow porous concrete block skeleton 1, the hollow porous concrete block skeleton 1 has a length of 390 mm, a width of 190 mm, and a height of 190 mm; the hollow hollow concrete block skeleton 1 has a length of 320 mm and a width of 120 mm, The height is 120mm; the straw fermentation module 2 is 316mm long, 116mm wide, and 116mm high.

[0045] The preparation method of the wheat straw fermented concrete block includes the following steps:

[0046] 1) Preparation of hollow porous concrete block skeleton:

[0047] Mix ratio 1: Portland cement 200kg / m 3 , Gravel 1400kg / m 3 , Water reducing agent 1kg / m 3 , The water-cement ratio is 0.2, and the particle size of ...

Embodiment 2

[0068] The wheat straw fermented concrete block in this embodiment has the same structure as the wheat straw fermented concrete block in Example 1.

[0069] The preparation process is as follows:

[0070] 1) Preparation of hollow porous concrete block skeleton:

[0071] Mix ratio 1: Portland cement 220kg / m 3 , Gravel 1600kg / m 3 , Water reducing agent 1.2kg / m 3 , The water-cement ratio is 0.25, and the particle size of the crushed stone is 10-15mm;

[0072] Mix ratio 2: Portland cement 220kg / m 3 , Fine sand 310kg / m 3 , Water reducing agent 1.2kg / m 3 , Water cement ratio 0.28;

[0073] Mix the raw materials in mix ratio 1 and mix ratio 2 with a mixer to prepare concrete slurry. The slurry made in mix ratio 1 is poured into the lower layer of the hollow porous concrete block skeleton mold, and the slurry made in mix ratio 2 Pour into the upper layer of the mold, demould within 2 days and put it indoors, natural curing for 17 days;

[0074] 2) Preparation of straw fermentation module:

[007...

Embodiment 3

[0091] The wheat straw fermented concrete block in this embodiment has the same structure as the wheat straw fermented concrete block in Example 1.

[0092] The preparation process is as follows:

[0093] 1) Preparation of hollow porous concrete block skeleton:

[0094] Mix ratio 1: Portland cement 250kg / m 3 , Gravel 1800kg / m 3 , Water reducing agent 1.5kg / m 3 , The water-cement ratio is 0.3, and the particle size of the crushed stone is 10-15mm;

[0095] Mix ratio 2: Portland cement 270kg / m 3 , Fine sand 320kg / m 3 , Water reducing agent 1.4kg / m 3 , Water cement ratio 0.3;

[0096] Mix the raw materials in mix ratio 1 and mix ratio 2 with a mixer to prepare concrete slurry. The slurry made in mix ratio 1 is poured into the lower layer of the hollow porous concrete block skeleton mold, and the slurry made in mix ratio 2 Pour into the upper layer of the mold, demold in 3 days and place it indoors, and maintain it naturally for 20 days;

[0097] 2) Preparation of straw fermentation module:...

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Abstract

The invention belongs to the technical field of road blocks and preparation methods of the road blocks, in particular to a wheat straw fermented concrete block and a preparation method of the wheat straw fermented concrete block, and solves the problems that foamed concrete block used in the existing road slope protection project cannot nourish a plant persistently and the cost is relatively high. The wheat straw fermented concrete block disclosed by the invention comprises a hollow porous concrete block framework and a straw fermented module, a groove is formed in the middle part of the hollow porous concrete block framework, the straw fermented module is arranged in the groove of the hollow porous concrete block framework, and the preparation of the wheat straw fermented concrete block comprises the steps of preparation of the hollow porous concrete block framework, preparation of the straw fermented module and preparation of the wheat straw fermented concrete block. The wheat straw fermented concrete block disclosed by the invention has the advantages of being capable of nourishing the plant persistently, having high strength, fully utilizing surplus straw resources and further having excellent water retention performance.

Description

Technical field [0001] The invention belongs to the technical field of road building blocks and preparation methods thereof, and particularly relates to a concrete building block manufactured by fermentation of wheat straw and a manufacturing method thereof. Background technique [0002] Greening around traffic lines and cities is an important task of modern urban transportation construction. Road slope protection projects mostly use ordinary concrete blocks. If you need to achieve greening on the slope protection, you need to reserve a certain amount of slope protection materials. A volumetric space in which soil is placed for plant growth. Taking into account that traditional concrete blocks do not have the ability to store water, nor are they nutritious, it is difficult to provide lasting nutrient conditions for road slope green vegetation. Traditional concrete blocks cannot be closely integrated with the soil and the plants growing in it. It is easy to produce soil erosion, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04E02D17/20
Inventor 张海波张高杰靳小苑汤博白丹赵才
Owner HENAN POLYTECHNIC UNIV
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