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A kind of fertilizer effect slow-release cement-based cementitious material and preparation method thereof

A gelling material, slow-release technology, applied in the fields of botanical equipment and methods, inorganic fertilizers, planting substrates, etc., can solve the problems of fertilizer efficiency loss, reduction of fertilizer efficiency utilization rate, and impact strength, etc., to reduce decomposition and volatilization, reduce Adverse effects, effects of improving utilization

Active Publication Date: 2018-08-17
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned patent application, in order to achieve the purpose of long-term slow-release fertilizer effect, the high-dosage nutrient components, in the actual use process, due to the high release concentration of nutrient elements in the early stage, on the one hand, plants cannot absorb it, which will inevitably lead to the loss of fertilizer efficiency. The utilization rate is reduced; on the other hand, excessive nutrient concentration will increase the ion concentration of soil water, hinder the plant's absorption of water, and cause the plant to lose water and die; the proportion of nutrient components in the entire cementitious material is large, will affect its strength

Method used

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  • A kind of fertilizer effect slow-release cement-based cementitious material and preparation method thereof
  • A kind of fertilizer effect slow-release cement-based cementitious material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A fertilizer-effect slow-release cement-based cementitious material, which is composed of the following raw materials in parts by weight: 80.0 parts of low-alkalinity sulphoaluminate cement, 10.0 parts of performance adjustment components, 5.0 parts of potassium sulfate compound fertilizer, 4.0 parts of coagulation-adjusting components; among them, 5 parts of expanded vermiculite in performance-adjusting components, 5 parts of machine-made black charcoal, 0.08 parts of boric acid in coagulation-adjusting components, 3.92 parts of urea, sulfur in low-alkalinity sulphoaluminate cement 44 parts of aluminate cement clinker, 28 parts of anhydrite, and 8 parts of limestone.

[0029] The preparation method of the fertilizer effect slow-release cement-based cementitious material is prepared by the following steps:

[0030] (1) Put the performance adjustment components and nutritional components in a ball mill, mix and grind for 5 minutes, then cool for 10 minutes, test the siev...

Embodiment 2

[0035] A fertilizer-effect slow-release cement-based gelling material, which is composed of the following raw materials in parts by weight: 86.0 parts of low-alkalinity sulphoaluminate cement, 7.5 parts of performance adjustment components, 4.0 parts of nutritional components, and 4.0 parts of nutrient components. Divide into 2.5 servings. Among them, 4 parts of expanded vermiculite in the performance adjustment component, 3.5 parts of machine-made black charcoal, 0.25 part of boric acid in the setting adjustment component, and 2.25 parts of urea. 54 parts of sulphoaluminate cement clinker, 20 parts of anhydrite, and 12 parts of limestone in low-alkalinity sulphoaluminate cement.

[0036] The preparation method of the slow-release fertilizer-effect cement-based cementitious material is the same as that in Example 1.

[0037] The performance test of the fertilizer-effect slow-release cement-based cementitious material prepared in this example is as follows: the compressive str...

Embodiment 3

[0039]A fertilizer-effect slow-release cement-based gelling material, which is composed of the following raw materials in parts by weight: 92.0 parts of low-alkalinity sulphoaluminate cement, 5.0 parts of performance adjustment components, 2.0 parts of nutritional components, and 2.0 parts of nutrient components. 1.0 points. Among them, 3.5 parts of expanded vermiculite in the performance adjustment component, 1.5 parts of machine-made black charcoal, 0.05 part of boric acid and 0.95 part of urea in the setting adjustment component. 52 parts of sulphoaluminate cement clinker, 27 parts of anhydrite, and 13 parts of limestone in low-alkalinity sulphoaluminate cement.

[0040] The preparation method of the slow-release fertilizer-effect cement-based cementitious material is the same as that in Example 1.

[0041] The performance test of the fertilizer-effect slow-release cement-based cementitious material prepared in this example is as follows: the compressive strength of the 3-...

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Abstract

The invention relates to a fertilizer effect slow-release type cement-based gelling material used for producing vegetation concrete, and a preparation method thereof. The fertilizer effect slow-release type cement-based gelling material comprises, by weight, 80.0-92.0 parts of low alkalinity sulphoaluminate cement, 5.0-10.0 parts of a performance regulating component, 2.0-5.0 parts of a nutrient component and 1.0-4.0 parts of a setting regulation component. The vegetation concrete produced by using the fertilizer effect slow-release type cement-based gelling material has low alkalinity, and can slowly release nutrient components to meet plant growth needs.

Description

technical field [0001] The invention relates to a slow-release fertilizer-effect cement-based cementitious material used for preparing plant-growing concrete and a preparation method thereof. Background technique [0002] At present, most of the cementitious materials used in the preparation of plant-growing concrete are ordinary Portland cement, which produces a large amount of alkaline substances during the hydration process, resulting in high alkalinity of plant-growing concrete, which is not suitable for plant growth. In addition, plant-growing concrete itself cannot provide nutrients, and the nutrients needed by plants must be obtained through external fertilization. Not only the fertilizer effect time is short, but also a large amount of fertilizer is lost with the water during the watering process, and the utilization rate of fertilizer efficiency is reduced. Plants often suffer from insufficient nutrition. Wither and die. These problems restrict the popularization a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C05G1/00A01G24/10C04B14/02C04B14/18C04B22/00C04B22/10C04B22/14C04B24/12
CPCA01G24/00C04B28/065C05C9/00C04B14/185C04B14/022C04B22/0013C04B24/126C04B22/143C04B22/10C05D1/02
Inventor 芦令超黄庆亮宫晨琛王守德赵丕琪
Owner UNIV OF JINAN
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