Water-stable granular material based on Gobi material base material and preparation process of water-stable granular material

Abstract

The invention discloses water-stable granules based on a gobi material base material and a preparation process of the water-stable granules. The preparation process comprises the following steps: providing a gobi material; respectively preparing a cement group, a permeation adhesive agent and a buffering agent; mixing and stirring a permeation adhesive agent, a buffering agent, an expanding agent and a retarder to obtain an additive; a cement group, an additive and a gobi material are mixed and stirred to obtain the water-stable granular material based on the gobi material base material, the permeation adhesive agent is adopted, permeation of the water-stable granular material based on the gobi material base material in soil is effectively enhanced, the cohesiveness between a foundation and the surrounding soil is enhanced, and the water-stable granular material based on the gobi material base material is improved. According to the water-stable aggregate based on the gobi material base material, the effect of reducing settlement and deformation of a foundation as much as possible is achieved, good hardness, toughness and elasticity are provided for the water-stable aggregate based on the gobi material base material by adopting the buffering agent, and damage to the surface of the foundation caused by smashing and falling of building materials and driving of engineering trucks can be reduced as much as possible in the construction process of a construction party after the foundation is built.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a water-stable granular material based on a Gobi material substrate and a preparation process thereof. Background Art

[0002] Water-stabilized aggregate, also known as cement-stabilized aggregate or cement-stabilized graded aggregate, is a composite material formed by mixing different grades of mineral aggregates, cement and other materials in a certain proportion. It is mainly used in the field of road construction, such as highways, municipal roads, airport runways, etc., and is widely used because of its good stability, high durability and convenient construction.

[0003] At present, when pouring the foundation of a building, it is generally necessary to dig a pit in a designated area, and then pour water-stabilizing aggregate into the pit. After the water-stabilizing aggregate is completely solidified, a foundation is formed. If the foundation is thick, the foundation will often settle significantly due to its own weight, which can easily cause structural damage to subsequent buildings. Summary of the invention

[0004] In order to overcome the defects in the prior art, the present invention provides a water-stable granular material based on a Gobi material substrate and a preparation process thereof, which improves the stability of the foundation and improves the construction efficiency.

[0005] In order to achieve the above object, the present invention provides a process for preparing water-stable granular materials based on a Gobi material substrate, comprising the following steps:

[0006] Provide Gobi materials;

[0007] Prepare cement group, penetrating adhesive and buffer respectively;

[0008] Mixing and stirring the osmotic adhesive, the buffer, the expander and the buffer to obtain an additive;

[0009] The cement group, additives and gobi materials are mixed and stirred to obtain water-stable aggregate based on the gobi material matrix.

[0010] Preferably, when providing the Gobi material, the Gobi material raw material is screened and the hardness is tested to obtain the Gobi material with a hardness of 6-8 and a particle size of 4mm-16mm.

[0011] Preferably, when preparing the cement group, the pozzolanic silicate cement, slag silicate cement and fly ash silicate cement are mixed and stirred in a mass ratio of 3:2:1.5, and the stirring speed is controlled to be 20r / min-30r / min and the stirring time is 30min-40min.

[0012] Preferably, ceramsite is prepared before preparing the infiltration adhesive, and when preparing the ceramsite, talc ceramic sheets and mullite ceramic sheets are mixed and ground in a mass ratio of 1:1 to obtain ceramsite with a particle size of 2 mm-5 mm.

[0013] Preferably, when preparing the penetrating adhesive, 3-6 parts of sodium methyl silicate powder, 1-3 parts of ceramsite and 4-7 parts of alkylbenzene sulfonate powder are mixed and stirred, and the stirring speed is controlled to be 15r / min-25r / min and the stirring time is 30min-40min.

[0014] Preferably, when preparing the buffer, the raw materials for preparing the buffer include, by weight:

[0015] 10-15 parts of ethylene-n-butene-non-conjugated diene terpolymer, 6-8 parts of carbon fiber precursor.

[0016] Preferably, when preparing the buffer, the preparation steps include:

[0017] Shearing the carbon fiber precursor to obtain sheared filaments;

[0018] melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt;

[0019] Mix the shear wire and the melt and stir them, and control the stirring speed to 15r / min-25r / min and the stirring time to 10min-20min;

[0020] After stirring, the mixture is poured into a mold for cooling to obtain a cooling block;

[0021] Preferably, when the penetrating adhesive, buffer, expander and buffer are mixed and stirred to obtain the additive, 10-15 parts of the penetrating adhesive, 16-20 parts of the buffer, 6-12 parts of the expander and 7-14 parts of the buffer are mixed and stirred, and the stirring speed is controlled to be 15r / min-25r / min and the stirring time is 30min-40min.

[0022] Preferably, when mixing the cement group, additives and Gobi materials to obtain water-stable aggregate based on the Gobi material matrix, 30-46 parts of the cement group, 6-10 parts of additives and 10-16 parts of the Gobi materials are mixed and stirred, and the stirring speed is controlled to 10r / min-20r / min and the stirring time is 30min-40min.

[0023] A water-stable granular material based on a Gobi material substrate is prepared by the water-stable granular material preparation process based on a Gobi material substrate.

[0024] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0025] 1) By using a penetrating adhesive prepared from sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder, the penetration of water-stable granular materials based on the Gobi material substrate in the soil can be effectively enhanced, thereby helping to enhance the adhesion between the foundation and the surrounding soil, thereby helping to reduce the relative movement between soil particles, and playing a role in minimizing foundation settlement and deformation;

[0026] 2) By adopting a buffer prepared by combining ethylene-n-butene-non-conjugated diene terpolymer and carbon fiber precursor, the water-stabilized aggregate based on the Gobi material substrate is provided with better hardness, toughness and elasticity, which helps to minimize the damage to the foundation surface caused by the falling of building materials and the driving of construction vehicles during the construction process based on the foundation after the foundation is built. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The present invention is a flowchart of a water-stable aggregate based on a Gobi material substrate and its preparation process according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] See also Figure 1 As shown, the present invention provides a process for preparing water-stable granular materials based on Gobi material substrate, comprising the following steps:

[0031] 1) Provide Gobi materials;

[0032] 2) preparing cement group, penetrating adhesive and buffer respectively;

[0033] 3) mixing and stirring the osmotic adhesive, the buffer, the swelling agent and the buffer to obtain an additive;

[0034] 4) Mixing and stirring the cement group, additives and Gobi materials to obtain water-stable aggregate based on Gobi materials.

[0035] The present invention also provides a water-stable granular material based on a Gobi material substrate, which is prepared by using the above-mentioned process for preparing the water-stable granular material based on a Gobi material substrate.

[0036] It should be noted that the methods used in the present invention are all conventional methods known to those skilled in the art unless otherwise specified, and the reagents and other materials used are all commercially available products unless otherwise specified, including:

[0037] Water: pure water; expansion agent: Shandong UEA cement expansion agent produced by Jinan Goodbon Engineering Reinforcement Co., Ltd.; retarder: calcium lignin sulfonate produced by Guangzhou Zouyang Chemical Co., Ltd.

[0038] Example 1

[0039] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0040] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi material with a hardness of 6 and a particle size of 4;

[0041] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 20r / min and the stirring time to 30min, to obtain a cement group;

[0042] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 2 mm ceramsite;

[0043] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 15 r / min and a stirring time of 30 min to obtain a penetrating adhesive;

[0044] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 3 nm and a diameter of 0.1 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 15 r / min and the stirring time to 10 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into 0.5 nm spherical particles using a granulator to obtain a buffer;

[0045] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 15 r / min and the stirring time is 30 min to obtain an additive;

[0046] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 10r / min and the stirring time is 30min to obtain water-stable aggregate based on Gobi material.

[0047] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0048] 10 parts of Gobi material, 30 parts of cement group, 6 parts of additives.

[0049] Wherein, by weight, the raw materials for preparing the additive include:

[0050] 10 parts of penetrating adhesive, 16 parts of buffer, 6 parts of expansion agent, and 7 parts of retarder.

[0051] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0052] 3 parts of sodium methyl silicate powder, 1 part of ceramsite, 4 parts of alkylbenzene sulfonate powder.

[0053] Wherein, by weight, the raw materials for preparing the buffer include:

[0054] 10 parts of ethylene-n-butene-non-conjugated diene terpolymer and 6 parts of carbon fiber precursor.

[0055] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0056] Example 2

[0057] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0058] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0059] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0060] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 20 r / min and a stirring time of 35 min to obtain a penetrating adhesive;

[0061] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 6 nm and a diameter of 0.4 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 20 r / min and the stirring time to 15 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into spherical particles of 0.5 nm using a granulator to obtain a buffer;

[0062] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0063] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0064] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0065] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0066] Wherein, by weight, the raw materials for preparing the additive include:

[0067] 13 parts of penetrating adhesive, 18 parts of buffer, 9 parts of expansion agent, and 11 parts of retarder.

[0068] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0069] 5 parts of sodium methyl silicate powder, 2 parts of ceramsite, 6 parts of alkylbenzene sulfonate powder.

[0070] Wherein, by weight, the raw materials for preparing the buffer include:

[0071] 13 parts of ethylene-n-butene-non-conjugated diene terpolymer and 7 parts of carbon fiber precursor.

[0072] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0073] Example 3

[0074] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0075] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 8 and a particle size of 16 mm;

[0076] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 30r / min and the stirring time to 40min, to obtain a cement group;

[0077] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 5 mm ceramsite;

[0078] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 25 r / min and a stirring time of 40 min to obtain a penetrating adhesive;

[0079] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 8 nm and a diameter of 0.8 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 25 r / min and the stirring time to 20 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into spherical particles of 0.5 nm using a granulator to obtain a buffer;

[0080] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 25 r / min and the stirring time is 40 min to obtain an additive;

[0081] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 20r / min and the stirring time is 40min to obtain water-stable aggregate based on Gobi material.

[0082] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0083] 16 parts of Gobi material, 46 parts of cement group, and 10 parts of additives.

[0084] Wherein, by weight, the raw materials for preparing the additive include:

[0085] 15 parts of penetrating adhesive, 20 parts of buffer, 12 parts of expansion agent, 14 parts of retarder.

[0086] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0087] 6 parts of sodium methyl silicate powder, 3 parts of ceramsite, 7 parts of alkylbenzene sulfonate powder.

[0088] Wherein, by weight, the raw materials for preparing the buffer include:

[0089] 15 parts of ethylene-n-butene-non-conjugated diene terpolymer and 8 parts of carbon fiber precursor.

[0090] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0091] Comparative Example 1

[0092] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0093] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0094] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0095] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0096] The ceramsite and alkylbenzene sulfonate powder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain a penetrating adhesive;

[0097] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 6 nm and a diameter of 0.4 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 20 r / min and the stirring time to 15 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into spherical particles of 0.5 nm using a granulator to obtain a buffer;

[0098] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0099] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0100] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0101] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0102] Wherein, by weight, the raw materials for preparing the additive include:

[0103] 13 parts of penetrating adhesive, 18 parts of buffer, 9 parts of expansion agent, and 11 parts of retarder.

[0104] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0105] 3.25 parts of ceramsite, 9.75 parts of alkylbenzene sulfonate powder.

[0106] Wherein, by weight, the raw materials for preparing the buffer include:

[0107] 13 parts of ethylene-n-butene-non-conjugated diene terpolymer and 7 parts of carbon fiber precursor.

[0108] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0109] Comparative Example 2

[0110] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0111] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0112] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0113] The sodium methyl silicate powder and the alkylbenzene sulfonate powder are mixed and stirred at a stirring speed of 20 r / min and a stirring time of 35 min to obtain a penetrating adhesive;

[0114] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 6 nm and a diameter of 0.4 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 20 r / min, controlling the time to 15 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) using a granulator to cut the cooling block into spherical particles of 0.5 nm to obtain a buffer;

[0115] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0116] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0117] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0118] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0119] Wherein, by weight, the raw materials for preparing the additive include:

[0120] 13 parts of penetrating adhesive, 18 parts of buffer, 9 parts of expansion agent, and 11 parts of retarder.

[0121] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0122] 5.9 parts of sodium methyl silicate powder, 7.1 parts of alkylbenzene sulfonate powder.

[0123] Wherein, by weight, the raw materials for preparing the buffer include:

[0124] 13 parts of ethylene-n-butene-non-conjugated diene terpolymer and 7 parts of carbon fiber precursor.

[0125] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0126] Comparative Example 3

[0127] The preparation process of water-stable granular materials based on Gobi material substrate includes the following steps:

[0128] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0129] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0130] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0131] The sodium methyl silicate powder and ceramsite are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain a penetrating adhesive;

[0132] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 6 nm and a diameter of 0.4 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 20 r / min and the stirring time to 15 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into spherical particles of 0.5 nm using a granulator to obtain a buffer;

[0133] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0134] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0135] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0136] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0137] Wherein, by weight, the raw materials for preparing the additive include:

[0138] 13 parts of penetrating adhesive, 18 parts of buffer, 9 parts of expansion agent, and 11 parts of retarder.

[0139] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0140] 14.3 parts of sodium methyl silicate powder, 3.7 parts of ceramsite.

[0141] Wherein, by weight, the raw materials for preparing the buffer include:

[0142] 13 parts of ethylene-n-butene-non-conjugated diene terpolymer and 7 parts of carbon fiber precursor.

[0143] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0144] Comparative Example 4

[0145] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0146] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0147] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0148] (i) shearing the carbon fiber precursor to obtain sheared filaments with a length of 6 nm and a diameter of 0.4 nm; (ii) melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; (iii) mixing the sheared carbon fiber precursor with the melt, controlling the stirring speed to 20 r / min and the stirring time to 15 min, and then pouring the mixture into a mold for cooling to obtain a cooling block; (iv) cutting the cooling block into spherical particles of 0.5 nm using a granulator to obtain a buffer;

[0149] The buffer, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0150] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0151] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0152] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0153] Wherein, by weight, the raw materials for preparing the additive include:

[0154] 24 parts buffer, 12 parts expander, 15 parts retarder.

[0155] Wherein, by weight, the raw materials for preparing the buffer include:

[0156] 13 parts of ethylene-n-butene-non-conjugated diene terpolymer and 7 parts of carbon fiber precursor.

[0157] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0158] Comparative Example 5

[0159] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0160] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0161] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0162] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0163] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 20 r / min and a stirring time of 35 min to obtain a penetrating adhesive;

[0164] The carbon fiber precursor is sheared, and the cooling block is cut into 0.5 nm spherical particles by a granulator to obtain a buffer;

[0165] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0166] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0167] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0168] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0169] Wherein, by weight, the raw materials for preparing the additive include:

[0170] 13 parts of penetrating adhesive, 18 parts of buffer (100% of carbon fiber precursor), 9 parts of expansion agent, and 11 parts of retarder.

[0171] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0172] 5 parts of sodium methyl silicate powder, 2 parts of ceramsite, 6 parts of alkylbenzene sulfonate powder.

[0173] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0174] Comparative Example 6

[0175] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0176] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0177] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0178] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0179] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 20 r / min and a stirring time of 35 min to obtain a penetrating adhesive;

[0180] The ethylene-n-butene-non-conjugated diene terpolymer is melted to obtain a melted liquid, which is poured into a mold for cooling to obtain a cooling block; the cooling block is cut into spherical particles of 0.5 nm using the ethylene-n-butene-non-conjugated diene terpolymer to obtain a buffer;

[0181] The buffer, the penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0182] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0183] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0184] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0185] Wherein, by weight, the raw materials for preparing the additive include:

[0186] 13 parts of penetrating adhesive, 18 parts of buffer (ethylene-n-butene-non-conjugated diene terpolymer accounts for 100%), 9 parts of expansion agent, and 11 parts of retarder.

[0187] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0188] 5 parts of sodium methyl silicate powder, 2 parts of ceramsite, 6 parts of alkylbenzene sulfonate powder.

[0189] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0190] Comparative Example 7

[0191] A process for preparing water-stable granular materials based on Gobi material substrate comprises the following steps:

[0192] The Gobi material raw materials were screened and the hardness was tested to obtain Gobi materials with a hardness of 7 and a particle size of 10 mm;

[0193] Mix and stir pozzolanic silicate cement, slag silicate cement and fly ash silicate cement (the mass ratio of pozzolanic silicate cement, slag silicate cement and fly ash silicate cement is 3:2:1.5), control the stirring speed to 25r / min and the stirring time to 35min, to obtain a cement group;

[0194] Grind the talc ceramic sheet and the mullite ceramic sheet (the mass ratio of the talc ceramic sheet to the mullite ceramic sheet is 1:1) to obtain 4 mm ceramsite;

[0195] The sodium methyl silicate powder, ceramsite and alkylbenzene sulfonate powder were mixed and stirred at a stirring speed of 20 r / min and a stirring time of 35 min to obtain a penetrating adhesive;

[0196] The penetrating adhesive, the expansion agent and the retarder are mixed and stirred, and the stirring speed is controlled to be 20 r / min and the stirring time is 35 min to obtain an additive;

[0197] The additive, cement group and Gobi material are mixed and stirred, and the stirring speed is controlled to be 15r / min and the stirring time is 35min to obtain water-stable aggregate based on Gobi material.

[0198] Among them, the raw materials for preparing the water-stable granular material based on the Gobi material substrate include, by weight:

[0199] 13 parts of Gobi material, 38 parts of cement group, 8 parts of additives.

[0200] Wherein, by weight, the raw materials for preparing the additive include:

[0201] 20 parts of penetrating adhesive, 14 parts of expansion agent, and 17 parts of retarder.

[0202] Among them, by weight, the raw materials for preparing the penetrating adhesive include:

[0203] 5 parts of sodium methyl silicate powder, 2 parts of ceramsite, 6 parts of alkylbenzene sulfonate powder.

[0204] A water-stable granular material based on a Gobi material substrate is prepared by adopting the above-mentioned preparation process.

[0205] Experimental methods

[0206] 1. Penetration experiment

[0207] 1) Experimental Materials

[0208] Experimental site: area 1000m 2

[0209] Water: 210000L

[0210] 2) Experimental procedures

[0211] ① Dig 70 test pits of the same size (1m long, 1m wide, 6m deep) on the test site;

[0212] ② Take 10 portions of each of the water-stable granular materials based on the Gobi material substrate prepared in Examples 1-3 and Comparative Examples 1-4, each with a volume of 1m*1m*6m;

[0213] ③ Pour 3000L of water into each portion of water-stable granular material based on Gobi material, stir evenly to obtain a stirred material;

[0214] ④ Pour 70 portions of the mixed materials into the corresponding test pits and wait for the mixed materials to solidify;

[0215] ⑤ After the mixing material solidifies, obtain the solidified blocks, then take out 70 solidified blocks and clean the soil on the solidified blocks;

[0216] ⑥ Calculate the volume of the solidified block extending into the soil, and take the average volume of the solidified block extending into the soil after using 10 portions of water-stable granular materials based on Gobi material substrate prepared in the same embodiment or comparative example, as shown in Table 1:

[0217] Table 1:

[0218] project <![CDATA[Average elongation value (m 3 )]]> Example 1 1 Example 2 1.4 Example 3 1.1 Comparative Example 1 0.8 Comparative Example 2 0.75 Comparative Example 3 0.73 Comparative Example 4 0.5

[0219] It can be seen from the above table that compared with Example 1, Example 3 and Comparative Examples 1-4, the volume of the solidified blocks produced by Example 2 based on the Gobi material-based water-stabilized aggregates after use is the largest, and the penetration adhesive prepared by sodium methyl silicate powder, expanded clay and alkylbenzene sulfonate powder can effectively enhance the penetration of the Gobi material-based water-stabilized aggregates in the soil, thereby helping to enhance the adhesion between the foundation and the surrounding soil, and then helping to reduce the relative movement between soil particles, thereby minimizing the settlement and deformation of the foundation.

[0220] 2. Hardness test

[0221] 1) Experimental Materials

[0222] Experimental site: area 2000m 2

[0223] Water: 8750000L

[0224] 1000kg iron ball: 1

[0225] Crane: 1

[0226] 2) Experimental procedures

[0227] ① Dig 70 test pits of the same size (5m long, 5m wide, 10m deep) on the test site;

[0228] ② Take 10 portions of each of the water-stable granular materials based on the Gobi material substrate prepared in Example 2 and Comparative Examples 5-7, each with a volume of 5m*5m*10m;

[0229] ③ Pour 125,000 L of water into each portion of water-stable granular material based on Gobi material, stir evenly, and obtain a stirred material;

[0230] ④ Pour 70 portions of the mixed materials into the corresponding test pits and wait for the mixed materials to solidify;

[0231] ⑤ After the stirred material solidifies, a solidified block is obtained;

[0232] ⑥ Use a crane to lift the iron ball and release it at a height of 6m, so that the iron ball will fall freely and hit the solidified block. Do the same operation for 70 solidified blocks.

[0233] ⑦ Calculate the deepest depth of the smashed part on the solidified block, and take the average value of the deepest depth of the smashed part on the solidified block produced after using 10 portions of water-stable granular materials based on Gobi material substrate prepared in the same embodiment or comparative example, as shown in Table 2:

[0234] Table 2:

[0235] project Average depth (cm) Example 2 3.4 Comparative Example 5 7.6 Comparative Example 6 8.1 Comparative Example 7 13.2

[0236] It can be seen from the above table that compared with comparative examples 5-7, the deepest point of the solidified block produced by the Gobi material-based water-stabilized aggregate prepared in Example 2 is shallower. Therefore, the buffer prepared by combining ethylene-n-butene-non-conjugated diene terpolymer and carbon fiber precursor provides better hardness, toughness and elasticity for the Gobi material-based water-stabilized aggregate, which helps to minimize the damage to the foundation surface caused by the falling of building materials and the driving of construction vehicles during the construction process based on the foundation after the foundation is built.

[0237] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A process for preparing water-stable granular materials based on Gobi materials, characterized in that: The following steps are involved: Provide Gobi materials; Prepare cement group penetration adhesive and buffer respectively; The penetrating adhesive, the buffer, the expansion agent and the retarder are mixed and stirred to obtain an additive; The cement group, additives and gobi materials are mixed and stirred to obtain water-stable aggregate based on the gobi material matrix.

2. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: When providing Gobi materials, the Gobi material raw materials are screened and the hardness is tested to obtain Gobi materials with a hardness of 6-8 and a particle size of 4mm-16mm.

3. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: When preparing the cement group, the pozzolanic silicate cement, the slag silicate cement and the fly ash silicate cement are mixed and stirred in a mass ratio of 3:2:1.5, and the stirring speed is controlled to be 20r / min-30r / min and the stirring time is 30min-40min.

4. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: Before preparing the infiltration adhesive, ceramsite is prepared. When preparing the ceramsite, talc ceramic sheets and mullite ceramic sheets are mixed and ground in a mass ratio of 1:1, so as to obtain ceramsite with a particle size of 2mm-5mm.

5. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 4, characterized in that: When preparing the penetrating adhesive, 3-6 parts of sodium methyl silicate powder, 1-3 parts of ceramsite and 4-7 parts of alkylbenzene sulfonate powder are mixed and stirred, and the stirring speed is controlled to be 15r / min-25r / min and the stirring time is 30min-40min.

6. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: When preparing the buffer, the raw materials for preparing the buffer include, by weight: 10-15 parts of ethylene-n-butene-non-conjugated diene terpolymer, 6-8 parts of carbon fiber precursor.

7. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 6, characterized in that: When preparing the buffer, the preparation steps include: Shearing the carbon fiber precursor to obtain sheared fibers; melting the ethylene-n-butene-non-conjugated diene terpolymer to obtain a melt; Mix the shear wire and the melt and stir them, and control the stirring speed to 15r / min-25r / min and the stirring time to 10min-20min; After stirring, the mixture is poured into a mold for cooling to obtain a cooling block; The cooling block is cut into spherical particles of uniform size by a granulator, thereby obtaining a buffer.

8. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: When the penetrating adhesive, buffer, expander and retarder are mixed and stirred to obtain the additive, 10-15 parts of the penetrating adhesive, 16-20 parts of the buffer, 6-12 parts of the expander and 7-14 parts of the buffer are mixed and stirred, and the stirring speed is controlled to be 15r / min-25r / min and the stirring time is 30min-40min.

9. The process for preparing water-stable granular materials based on Gobi material substrate according to claim 1, characterized in that: When mixing the cement group, additives and Gobi materials to obtain water-stable aggregate based on the Gobi material matrix, 30-46 parts of the cement group, 6-10 parts of the additives and 10-16 parts of the Gobi materials are mixed and stirred, and the stirring speed is controlled to 10r / min-20r / min and the stirring time is 30min-40min.

10. A water-stable granular material based on Gobi material, characterized in that: The water-stable granular material is prepared by the process for preparing the Gobi material-based water-stable granular material as claimed in claim 1.

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