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Greening vegetation concrete and construction method thereof

A technology of vegetation concrete and concrete, which is applied in the field of construction engineering, can solve the problems of soaking and scouring yet to be observed, and achieve the effects of high bond strength, guaranteed growth and high water permeability

Inactive Publication Date: 2011-04-27
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is mostly used for greening on existing concrete surfaces and exposed rock surfaces, but it remains to be seen whether it can withstand long-term immersion and scouring in floods, and there are no relevant discussions and reports on the performance of replanting and replanting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The construction season is early summer, and the construction site is a mountainous expressway in Yunnan. The slope angle is 60 degrees, the height is 25m, and the width is 250m. Clean up the side slope first, and then carry out hanging net treatment.

[0031] The grassroots greening concrete composition and percentage by weight of the present embodiment are 15% of fly ash, 13% of burnt magnesia, 25% of ammonium dihydrogen phosphate, 1% of sodium bicarbonate, 45% of sand, 0.5% of straw and 0.5% of boric acid. Use a mixer to mix well and evenly to form dry grass-roots greening concrete mixture.

[0032] The main component of the surface vegetation concrete of the present embodiment is fly ash, burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sandy loam, sawdust, and their weight ratio is 6: 3.75%: 11.25%: 1.0%: 50 %: 28%. The grass species is a mixture of Bermudagrass and Cottongrass, the weight ratio of which is 40:60, and the dosage per square meter...

Embodiment 2

[0035] The construction season is early spring, and the construction site is a mountain road in Guizhou, with a slope angle of 65 degrees, a height of 30m, and a width of 300m. Clean up the side slope first, and then carry out hanging net treatment.

[0036] The greening concrete main component of the base of the present embodiment is fly ash, burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sand, straw and citric acid, and their weight ratio is: 25%: 7%: 35%: 0.5%: 30%: 0.5%: 2%. Use a mixer to mix well and evenly to form dry grass-roots greening concrete mixture.

[0037] The main components of the surface vegetation concrete of the present embodiment are fly ash, overburned magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sandy loam, and crushed straw, and their weight ratio is 10%: 2.25%: 6.75%: 2.0 %: 60%: 19%. The grass species is a mixture of bluegrass, perennial ryegrass, bahiagrass and clover, the weight ratio is 20:20:30:30, and the d...

Embodiment 3

[0040] The construction season is May, and the construction site is somewhere in Shanghai. The slope angle is 30 degrees, the height is 10m, and the width is 10m. Considering the test section and slope, only the side slopes were cleaned.

[0041] The grassroots greening concrete main component of the present embodiment is fly ash, burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sand, straw and borax, and their weight ratio is: 20%: 10%: 33%: 0.75 %: 35%: 1%: 1.25%. Use a mixer to mix well and evenly to form dry grass-roots greening concrete mixture.

[0042] The main components of the surface vegetation concrete in this embodiment are fly ash, burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sandy loam, crushed rice husk and straw. Their weight ratio is 8%:3%:8%:3.0%:55%:23%. The grass species is a mixture of Bermudagrass, water-saving grass and Cottongrass, with a weight ratio of 20:40:40 and an amount of 0.1 kg per square meter.

[00...

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Abstract

The invention discloses greening vegetation concrete and a construction method thereof in the technical field of building engineering. The concrete comprises base concrete and grass seed surface concrete, wherein the base concrete is positioned at the bottom and has thickness of less than 5cm; the grass seed surface concrete is positioned on the top and has thickness of between 5 and 10cm; the base concrete comprises fly ash, over-burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, sand, plant fiber and a set controlling material; and the grass seed surface concrete comprises fly ash, over-burnt magnesia, ammonium dihydrogen phosphate, sodium bicarbonate, planting soil and humus. In the invention, phosphate cement is adopted; due to the chemical reaction between the over-burnt magnesia and the ammonium dihydrogen phosphate, cohesive strength is formed, and ammonia gas is continuously released in the reaction, so that communicated pores are formed in the greening concrete and nutrient is provided for vegetation to realize the preparation of the greening concrete.

Description

technical field [0001] The invention relates to a material and a construction method in the technical field of construction engineering, in particular to a greening vegetation concrete and a construction method thereof. Background technique [0002] At present, for some projects, such as slope protection and golf courses, people hope to use green vegetation concrete to reduce the impact on the living environment. Greening concrete (also known as long-grass concrete, concrete lawn, concrete grass blanket, etc.) refers to concrete and its products that can adapt to plant growth, carry out vegetation operations, maintain the original protective function, protect the environment, and improve ecological conditions. At present, the research on greening concrete at home and abroad has achieved certain results and practical engineering applications. After searching the existing technology, it is found that the Chinese patent publication number: CN 101538135A, patent name: a plant-ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20C04B28/00
CPCC04B28/34Y02W30/91C04B14/06C04B14/304C04B18/08C04B18/24C04B22/106C04B38/0022C04B38/0051C04B2103/445C04B14/361
Inventor 陈兵
Owner SHANGHAI JIAO TONG UNIV
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