High-fertility and low-alkaline cementing material for vegetation concrete and preparation method thereof

A technology for planting concrete and cementitious materials, applied in the field of high-fertilizer and low-alkali cementitious materials and their preparation, can solve the problems of artificial fertilization, increased labor costs, and lack of gaps, so as to prevent water loss and improve fertilizer efficiency utilization , to avoid the effect of quick release

Inactive Publication Date: 2018-12-28
山东高速路用新材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the mineral composition and hydration characteristics of Portland cement, the pH value of the cement after hydration is above 12. At present, the commonly used method is to react with calcium hydroxide, the hydration product of cement, by adding some active admixtures. Reduce the pH value of the system, but it is difficult to make the pH value of the system reach neutral or weak alkaline by this method, which seriously affects the growth of plants
In addition, the existing plant-based concrete cementitious material system lacks elements such as nitrogen, phosphorus, and potassium requ

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-fertilizer and low-alkali cementing material for plant-growing concrete, comprising the following raw materials in parts by weight: 43 parts of ammonium dihydrogen phosphate, 10 parts of potassium dihydrogen phosphate, 10 parts of dead-burned magnesium oxide, 1 part of borax, and limestone 18 parts of aluminum powder, 1 part of activated aluminum powder, 5 parts of silicate clinker, and 10 parts of expanded perlite.

[0022] The preparation method of the above-mentioned high-nutrient and low-alkali cementitious material used for planting concrete comprises the following steps:

[0023] According to the above parts by weight, first, 1 part of aluminum powder, 5 parts of silicate clinker and 10 parts of expanded perlite are mixed and ground until the specific surface area reaches 400m 2 / kg to obtain component A; then 43 parts of ammonium dihydrogen phosphate, 10 parts of potassium dihydrogen phosphate, 10 parts of magnesium oxide, 1 part of borax and 18 parts of l...

Embodiment 2

[0026] A high-fertilizer and low-alkali cementing material for plant-growing concrete, comprising the following raw materials in parts by weight: 35 parts of potassium dihydrogen phosphate, 26 parts of dead-burned magnesium oxide, 5 parts of borax, 10 parts of limestone powder, and active aluminum powder 2 parts, 9 parts of silicate clinker, 13 parts of expanded perlite.

[0027] The preparation method of the above-mentioned high-nutrient and low-alkali cementitious material used for planting concrete comprises the following steps:

[0028] According to the above parts by weight, first, 2 parts of aluminum powder, 9 parts of silicate clinker and 13 parts of expanded perlite are mixed and ground until the specific surface area reaches 380m 2 / kg to obtain component A; then 35 parts of potassium dihydrogen phosphate, 26 parts of magnesium oxide, 5 parts of borax and 10 parts of limestone powder are mixed to obtain component B, and finally component A and component B are uniforml...

Embodiment 3

[0031] A high-fertilizer and low-alkali cementing material for plant-growing concrete, comprising the following raw materials in parts by weight: 25 parts of ammonium dihydrogen phosphate, 15 parts of potassium dihydrogen phosphate, 17 parts of dead-burned magnesium oxide, 3 parts of borax, and limestone 5 parts of aluminum powder, 3 parts of activated aluminum powder, 14 parts of silicate clinker, and 18 parts of expanded perlite.

[0032] The preparation method of the above-mentioned high-nutrient and low-alkali cementitious material used for planting concrete comprises the following steps:

[0033] According to the above parts by weight, first, 3 parts of aluminum powder, 14 parts of silicate clinker and 18 parts of expanded perlite are mixed and ground until the specific surface area reaches 350m 2 / kg to obtain component A; then 25 parts of ammonium dihydrogen phosphate, 15 parts of potassium dihydrogen phosphate, 17 parts of magnesium oxide, 3 parts of borax and 5 parts ...

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Abstract

The invention relates to a high-fertility and low-alkaline cementing material for vegetation concrete and a preparation method thereof. The high-fertility and low-alkaline cementing material for vegetation concrete comprises phosphate minerals, re-fired magnesia, borax, limestone powder, active aluminum powder, silicate clinker and expanded perlite. Through the synergistic action of the components, the cost of the cementing material is greatly reduced while an excellent growth space is provided for plant roots, and the resource utilization of industrial waste is facilitated.

Description

technical field [0001] The invention relates to a high-fertilizer and low-alkali type cementitious material used for planting concrete and a preparation method thereof. Background technique [0002] At present, my country has become the country with the largest highway mileage and railway operating mileage in the world. The stability and service life of the infrastructure are directly affected by the slope stability of roadbeds of highways, railways, and barren hills at tunnel entrances. Vegetative concrete technology has been widely promoted and applied in highway slopes because of its functions of slope protection and sand fixation, water purification, greening of slopes, and beautification of the environment. [0003] Usually, the cementitious material used in the preparation of plant-growing concrete is Portland cement or sulphoaluminate cement. Due to the mineral composition and hydration characteristics of Portland cement, the pH value of the cement after hydration i...

Claims

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Application Information

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IPC IPC(8): C04B28/04C05B7/00
CPCC04B28/04C05B7/00C04B22/16C04B14/304C04B22/0013C04B14/28C04B22/04C04B14/185
Inventor 李传海白玉铎高国华阚涛姜侃徐宁陈颖
Owner 山东高速路用新材料技术有限公司
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