Preparation method for solidified soil

A production method and technology of solidifying soil, which is applied in chemical instruments and methods, clay preparation equipment, pretreatment control, etc., can solve the problems of construction quality impact, insufficient strength of solidified soil, and inability to meet engineering needs, etc.

Pending Publication Date: 2021-08-06
SHANGHAI STRONG FOUND ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the process of mixing the solidified soil, the soil material, curing agent and water are generally mixed at one time and stirred. There are often problems such as insufficient strength of the solidified soil to meet the needs of the project, which in turn affects the construction quality.

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  • Preparation method for solidified soil
  • Preparation method for solidified soil

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Embodiment Construction

[0032] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0033] In this embodiment, in this embodiment, a moist caking material is added to the solidified soil, and the main component of the material is natural dihydrate gypsum with a chemical formula of CaSO4·2H2O. Natural dihydrate gypsum is also called air-hardening inorganic gelling material. This kind of gypsum is lumpy and lumpy, and has cohesiveness. It is directly mixed into the undisturbed soil, and it is not easy to stir and cannot be mixed evenly. And the screw conveyor cannot be used for material transportation. If it is used forcibly, it will stick to the blades and pipelines of the screw conveyor, causing failure.

[0034] Adding gypsum into the solidified soil can shorten the solidification time of the solidified soil, adjust the acidi...

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Abstract

The invention provides a preparation method for solidified soil. The preparation method comprises the following steps: 1) adding water into moist materials to dilute; preparing moist sticky materials which cannot be conveyed by a spiral conveyor into initial material slurry by a stirring barrel; 2) preparing solidifying agent slurry; feeding the initial material slurry in the step 1) and a powered solidifying agent into the solidifying agent slurry stirring barrel to mix in proportion, thereby forming solidifying agent slurry; 3) mixing mud with the solidifying agent slurry; feeding the mud at a construction state with the solidifying agent slurry in step 2) into a solidified soil stirrer to stir, thereby forming on-site mixed solidified soil. According to the preparation method for the solidified soil provided by the invention, moist sticky materials such as plaster are mixed into the solidified soil, so that condensation time of the solidified soil can be adjusted, alkalinity or acidity of the solidified soil is adjusted; and ore slag is mixed to reduce usage amount of cement, so that cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a method for making solidified soil. Background technique [0002] In the construction of construction projects, subway construction, exploration, pile foundation, drilling, and underground foundation pit drilling and excavation, a large amount of waste soil and slag are produced. This part of the waste soil and slag is a kind of clay, organic and inorganic material additives , a multiphase stable colloidal suspension of dirty oil and drilling cuttings, the composition of which is quite complex. [0003] In our country, it is of far-reaching historical significance to vigorously develop building materials that save energy, save soil, use waste, protect the environment and improve building functions. It is a major measure to achieve sustainable development and a great cause that will be left to future generations. A series of treatments are used as building materials fo...

Claims

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Application Information

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IPC IPC(8): B28C5/00B28C7/00B28C7/12B28C7/04B28C7/06B28C7/16B28C5/16C09K17/06C09K17/10C09K17/02
CPCB28C5/006B28C7/0007B28C7/126B28C7/044B28C7/06B28C7/16B28C5/16C09K17/06C09K17/10C09K17/02C09K2109/00
Inventor 盛晓幸宋雪清刘全林
Owner SHANGHAI STRONG FOUND ENG
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