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Wheat straw fermented concrete block and preparation method thereof

A technology of concrete block and wheat straw, applied in excavation, infrastructure engineering, construction, etc., can solve problems such as toxicity, soil erosion, etc., achieve the effect of light weight, good nutrient conditions, and solve soil erosion

Active Publication Date: 2019-10-08
HENAN POLYTECHNIC UNIV
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  • Summary
  • 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

Method used

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

Examples

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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, and a groove is provided in the middle of the hollow porous concrete block skeleton 1, 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 is 390mm long, 190mm wide, and 190mm high; the groove in the middle of the hollow porous concrete block skeleton 1 is 320mm long and 120mm wide, The height is 120mm; the straw fermentation module 2 is 316mm long, 116mm wide and 116mm high.

[0045] The preparation method of the above-mentioned wheat straw fermented concrete block comprises the following steps:

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

[0047] Requirements for mix ratio 1: Portland cement 200kg / m 3 , gravel 1400kg / m3 , superplasticizer 1kg / m 3 , the water-cement ratio is 0.2...

Embodiment 2

[0068] The wheat straw fermented concrete block in this example 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] Requirements for mix ratio 1: Portland cement 220kg / m 3 , gravel 1600kg / m 3 , superplasticizer 1.2kg / m 3 , the water-cement ratio is 0.25, and the particle size of crushed stone is 10-15mm;

[0072] Requirements for mix ratio 2: Portland cement 220kg / m 3 , fine sand 310kg / m 3 , superplasticizer 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, pour the slurry made in mix ratio 1 into the lower layer of hollow porous concrete block skeleton mold, and mix the slurry made in mix ratio 2 Pour it into the upper layer of the mold, demould it in 2 days and place it indoors for 17 days of natural curing;

[0074] 2) Preparat...

Embodiment 3

[0091] The wheat straw fermented concrete block in this example 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] Requirements for mix ratio 1: Portland cement 250kg / m 3 , gravel 1800kg / m 3 , water reducer 1.5kg / m 3 , the water-cement ratio is 0.3, and the particle size of crushed stone is 10-15mm;

[0095] Requirements for mix ratio 2: Portland cement 270kg / m 3 , fine sand 320kg / m 3 , superplasticizer 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, pour the slurry made in mix ratio 1 into the lower layer of hollow porous concrete block skeleton mold, and mix the slurry made in mix ratio 2 Pour it into the upper layer of the mold, demould it in 3 days and place it indoors for 20 days of natural curing;

[0097] 2) Preparation of...

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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 blocks and preparation methods thereof, in particular to a concrete block manufactured by fermenting wheat straw and a preparation method thereof. Background technique [0002] Greening around traffic lines and cities is an important task in modern urban traffic construction. Common concrete blocks are mostly used in road slope protection projects. If it is necessary to realize greening on slope protection, it is necessary to reserve a certain The volume of space in which soil is placed for plant growth. Considering that traditional concrete blocks do not have water storage and water retention capacity, let alone nutrition, it is difficult to provide long-lasting nutrients for road slope greening vegetation, and traditional concrete blocks cannot be closely combined with the soil and the plants growing in it. It is prone to water and soil erosion, which in turn makes it difficult for plants to grow....

Claims

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Application Information

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Patent Type & Authority Patents(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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