A kind of low-cost ecological concrete and preparation method thereof

An eco-concrete, low-cost technology, applied in the direction of manufacturing tools, ceramic molding machines, etc., can solve the problems of the overall planning of coastal reclamation, poor structural performance of silt soil, waste of human and material resources, etc., to improve land utilization and construction Simple, low-cost effect

Active Publication Date: 2018-03-09
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The biggest problem in the sea reclamation project is that the coastal soil has high salt content, high alkaline soil, and the soil is unstructured silt soil, which is difficult to meet the growth of crops. Previously, experts have proposed the flushing method to improve saline-alkali soil. Canal water delivery pours a large amount of fresh water with low salt content into the field, takes out the water-soluble salt in the soil, and then drains it through the channel, which can effectively control the saline-alkali soil
In the salt washing process, the water transport function of channels and drainage ditches is particularly important, and the structural performance of silt soil in reclamation areas is poor. The situation of "without sight and shape for three years" will not only waste manpower and material resources, but will also cause great difficulties to the overall planning of coastal reclamation

Method used

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  • A kind of low-cost ecological concrete and preparation method thereof
  • A kind of low-cost ecological concrete and preparation method thereof
  • A kind of low-cost ecological concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for preparing low-cost ecological concrete, which adopts a secondary feeding method, in which only coastal silt and mixing water are added for the first feeding, and cement, water reducer and thickener are added for the second feeding; it includes the following steps ,

[0036] Firstly, the coastal silt soil in Dongtai City, Jiangsu Province is selected, and the coastal silt soil is configured according to the particle size mass percentage of the coastal silt sand soil.

[0037] Take 1000Kg of coastal silt soil and 320Kg of mixing water, put them into a mixer and stir for 1min to fully break and liquefy the silt soil;

[0038] Add 120Kg of cement, 5Kg of water reducer and 0.02Kg of thickener to the fully liquefied silt slurry, and stir for 1 minute to obtain fresh cement soil;

[0039] The freshly mixed cement soil is added to the mold in three layers, each layer is vibrated 20 times with a tamping rod, and then the concrete is cured in a humid environment wit...

Embodiment 2

[0041] A method for preparing low-cost ecological concrete, which adopts a secondary feeding method, in which only coastal silt and mixing water are added for the first feeding, and cement, water reducer and thickener are added for the second feeding; it includes the following steps ,

[0042] Firstly, the coastal silt soil in Dongtai City, Jiangsu Province is selected, and the coastal silt soil is configured according to the particle size mass percentage of the coastal silt sand soil.

[0043] Take 1000Kg of coastal silt soil and 400Kg of mixing water, put them into a mixer and stir for 1min to fully break and liquefy the silt soil;

[0044] Add 180Kg of cement, 5Kg of water reducer and 0.02Kg of thickener to the fully liquefied silt slurry, and stir for 1 minute to obtain fresh cement soil;

[0045] The freshly mixed cement soil is added to the mold in three layers, each layer is vibrated 20 times with a tamping rod, and then the concrete is cured in a humid environment wit...

Embodiment 3

[0047] A method for preparing low-cost ecological concrete, which adopts a secondary feeding method, in which only coastal silt and mixing water are added for the first feeding, and cement, water reducer and thickener are added for the second feeding; it includes the following steps ,

[0048] Firstly, the coastal silt soil in Dongtai City, Jiangsu Province is selected, and the coastal silt soil is configured according to the particle size mass percentage of the coastal silt sand soil.

[0049] Take 1000Kg of coastal silt soil and 460Kg of mixing water, put them into a mixer and stir for 1min to fully break and liquefy the silt soil;

[0050] Add 200Kg of cement, 5Kg of water reducer and 0.02Kg of thickener to the fully liquefied silt slurry, and stir for 1 minute to obtain fresh cement soil;

[0051] The freshly mixed cement soil is added to the mold in three layers, each layer is vibrated 20 times with a tamping rod, and then the concrete is cured in a humid environment wit...

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Abstract

The invention discloses an ecological concrete with low manufacturing cost and a preparing method of the ecological concrete.The ecological concrete with low manufacturing cost is prepared from silty soil, cement, a water reducing agent, a thickening agent and water at the mass ratio of 1000:(120-200):5:0.02:(320-460).Coastal silty soil and mixing water are weighed according to the mass ratio and put into a stirring machine to be stirred, and the silty soil is fully mashed and liquefied; cement and an additive are added into the fully-liquefied silty soil and stirred, and then newly-stirred cement soil is obtained; the newly-stirred cement soil is added into a mold and cured for 7 days with a common concrete curing method, and the formed ecological concrete with low manufacturing cost is obtained.The coastal silty soil with fine particles improves the workability and strength of the concrete.According to the ecological concrete, the coastal silty soil serves as the main ingredient, a small quantity of gelling materials and the additive are added, nearby sea water serves as the mixing water, and thus the material cost is greatly reduced; the ecological concrete can be used for channel and slope protection in coastal enclosing districts to increase the land utilization rate, and can also be widely applied to other coastal and field roadbed construction.

Description

technical field [0001] The invention belongs to the technical field of civil engineering materials, and in particular relates to a low-cost ecological concrete suitable for slope protection of coastal silty soil ditches and a preparation method thereof. Background technique [0002] Land resources are the root of a country's survival and development. Due to the rapid economic development in my country in recent years, the usable land resources have basically been developed, and the lack of land resources has increasingly constrained the economy. This phenomenon is particularly prominent in coastal economically developed areas. Therefore, the country has carried out large-scale tidal flat reclamation along the coast to increase spare cultivated land and alleviate the land crisis in our country. [0003] The biggest problem in the sea reclamation project is that the coastal soil has high salt content, high alkaline soil, and the soil is unstructured silt soil, which is difficul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04B28B1/04B28B1/08
CPCB28B1/045C04B28/04C04B2103/302C04B24/386C04B14/068
Inventor 陈盛郭相平王振昌于晓飞
Owner HOHAI UNIV
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