High-strength environment-friendly tung oil and glutinous rice juice foam light soil and preparation method thereof

Abstract

The invention discloses high-strength environment-friendly tung oil and glutinous rice juice foam light soil and a preparation method thereof, and relates to the technical field of foam light soil preparation, and the foam light soil comprises the following raw materials: slag, slaked lime, cement, tung oil, glutinous rice juice, foam and water. Traditional foam light soil seriously depends on cement and has the advantages of being high in CO2 emission amount, large in energy consumption and the like, and in addition, resource utilization of slag is extremely urgent. The slaked lime and the slag are used for completely replacing cement to prepare the light soil, the cement consumption and the manufacturing cost are reduced, carbon emission is reduced, meanwhile, high-quality application of the slag is achieved, in the hardening process, the pore structure of the material is effectively improved by means of the hydrophobicity of the tung oil and the organic cementation effect of the sticky rice juice, and the hardening performance of the material is improved. Compared with the traditional cement-based foam soil which is easy to generate shrinkage cracks, the cement-based foam soil has the advantages that the internal stress and the cracking risk are obviously reduced, and the long-term service performance is improved.

Description

Technical Field

[0001] This invention relates to the field of foamed lightweight soil preparation technology, specifically to high-strength environmentally friendly tung oil and glutinous rice juice foamed lightweight soil and its preparation method. Background Technology

[0002] Foamed lightweight soil is a lightweight material formed by physically mixing a foaming agent solution with essential components such as cement-based cementitious materials, water, and optional components such as aggregates, admixtures, and additives in a certain proportion, followed by hardening through physicochemical processes. Due to its advantages such as light weight, adjustable strength, good shock absorption, good heat and sound insulation, convenient construction, and excellent durability, it is widely used in roadbed filling, bridge abutment backfilling, road reconstruction and expansion, steep slope embankments, and soft soil subgrade load reduction projects.

[0003] Cement, as the only solid material in conventional foamed lightweight soil, generates strength through hydration to form cementitious substances. It is evident that foamed lightweight soil heavily relies on cement; global cement production exceeds 4.4 billion tons, consuming vast amounts of fossil fuels and natural resources, damaging the ecological environment, and causing pollution. Cement has high carbon emissions; every ton of cement clinker produced emits approximately 0.95 tons of CO2, making it the third largest carbon emitter after the power and steel industries. Furthermore, slag is a typical industrial solid waste, characterized by high production volume, large stockpiles, and significant pollution. Due to its potential cementitious activity, slag is often used to prepare geopolymer cementitious materials. my country has abundant quicklime resources, and its cost is far lower than that of cement.

[0004] Foamed lightweight soil can be prepared by completely replacing cement using slag, quicklime, tung oil, and glutinous rice juice. This enables the high-quality application of slag and zero cement consumption, solves the problems of slag storage and pollution, and reduces slag treatment costs, energy consumption, CO2 emissions, and engineering costs. Summary of the Invention

[0005] The purpose of this invention is to provide a high-strength, environmentally friendly tung oil and glutinous rice juice foamed lightweight soil and its preparation method. By using slag, quicklime, tung oil and glutinous rice juice as cementing materials to replace the cement used in traditional foamed lightweight soil, it has the advantages of energy saving, environmental protection and high construction efficiency. It realizes the resource utilization of slag, which is in line with the development trend of green construction in civil engineering, and solves the problems of large-scale slag stockpiling and low resource utilization rate.

[0006] The objective of this invention can be achieved through the following technical solutions: A method for preparing a high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay includes the following steps: Step S1: Mix slag, quicklime, tung oil, glutinous rice juice and water, and stir for 1-2 minutes at a speed of 100 r / min to obtain a mixed slurry; Step S2: Dilute the foaming agent with water to obtain a foaming liquid, add the foaming liquid to a foaming machine, and foam to obtain foam. Step S3: Mix the slurry and foam evenly to obtain the foaming material; Step S4: Pour the foaming material into the mold, leave it at room temperature for one day, and after it solidifies and forms, cut the top surface flat and use an air pump to demold it to obtain foamed lightweight soil.

[0007] Furthermore, in step S1, the weight ratio of slag to quicklime is 80:20, the amount of tung oil is 2% of the sum of the mass of slag and quicklime, the amount of glutinous rice juice is 7.5% of the sum of the mass of slag and quicklime, and the water-to-solid ratio is 0.7-0.8.

[0008] Furthermore, the slag is granulated blast furnace slag powder, with a grade of S95 or higher.

[0009] Furthermore, the quicklime is industrial-grade quicklime powder with a calcium hydroxide content of ≥90%.

[0010] Furthermore, the tung oil is one or a mixture of two types of tung oil, either boiled or raw, in any proportion.

[0011] Furthermore, the glutinous rice juice is prepared by the following steps: Step A1: After washing the glutinous rice with water, place the glutinous rice in a container, add water to completely submerge the glutinous rice, and soak for 6-8 hours to obtain pre-treated glutinous rice; Step A2: Mix the pretreated glutinous rice and water, and cook using a heat source for 0.5-1 hour to obtain a paste-like mixture; Step A3: Pour the paste mixture into a container lined with clean filter gauze, filter and retain the filtrate, cool to room temperature to obtain glutinous rice juice.

[0012] Furthermore, the mass ratio of the pretreated glutinous rice to water in step A2 is 1:4-6.

[0013] Furthermore, the foaming liquid mentioned in step S2 is a foaming agent diluted with water 40-100 times, and the foaming agent is one or more of sodium fatty alcohol polyoxyethylene ether sulfate, sodium alkenyl sulfonate, sodium dodecyl sulfate and triethanolamine mixed in any proportion.

[0014] Furthermore, the density of the foam described in step S2 is 50 kg / m³. 3 The settling distance and water leakage volume after standing for 1 hour were 4 mm and 24 mL, respectively, and the foaming ratio was 20 times.

[0015] The beneficial effects of this invention are as follows: This invention uses slag and quicklime to replace traditional Portland cement, and tung oil and glutinous rice juice as functional additives to improve the mechanical properties of the material, realize the resource utilization of slag, reduce cement usage, and thus significantly reduce the large amounts of CO2, dust, smoke, and harmful gases emitted during cement production, helping to alleviate the greenhouse effect and environmental pollution. During the preparation and curing of foamed lightweight soil, the alkaline environment provided by lime can stimulate the potential cementitious activity of slag, and the synergistic effect of lime, tung oil, and glutinous rice juice can further improve the strength of the foamed lightweight soil. Compared with traditional foamed lightweight soil, the foamed lightweight soil proposed in this invention has the characteristics of energy saving, environmental protection, low carbon, and low cost. Its performance is similar to that of conventional foamed lightweight soil, meeting the needs of engineering applications and conforming to the concept of sustainable development.

[0016] In the hardening process of the foamed lightweight soil in this invention, the hydrophobicity of tung oil and the organic binding effect of glutinous rice juice effectively improve the pore structure of the material, enhance its volume stability and anti-drying shrinkage performance. Compared with the characteristic of traditional cement-based foamed lightweight soil being prone to shrinkage cracks, it significantly reduces internal stress and cracking risk, and improves long-term service performance.

[0017] The foamed lightweight soil prepared by this invention has the characteristics of being lightweight and high-strength, which can significantly reduce the overburden load and reduce the additional stress on the foundation. It is especially suitable for projects that are prone to settlement and helps to ensure the safety and stability of the structure.

[0018] Granulated blast furnace slag particles have a glassy structure and are potential active cementitious materials. The reaction rate and degree of reaction between granulated blast furnace slag particles and water alone are very slow, mainly because the silicon-rich phase is encapsulated by the calcium-rich phase. The effect of water molecules is insufficient to overcome the decomposition activation energy of the calcium-rich phase. Adding water to granulated blast furnace slag particles only results in a weak hydration reaction on their surface. The addition of quicklime creates an alkaline environment. Under this alkaline environment, the network-like glassy structure of the granulated blast furnace slag particles is disrupted first because the bond energy of the main structural bonds (Ca-O bonds) of the calcium-rich phase is about 1 / 3 that of the main structural bonds (Si-O bonds) of the silicon-rich phase. This causes the calcium-rich phase on the surface to dissolve and release Ca. 2+ As the calcium-rich phase of the protective layer dissolves, the silicon-rich phase is exposed to the alkaline environment and is destroyed, leading to the decomposition of the entire glass network and the dissolution of [SiO4]. 4- , with Ca in the solution 2+ The reaction produces CSH.

[0019] The strong alkaline environment and calcium ions provided by quicklime promote the saponification reaction of tung oil to form calcium tungate "molecular bridges," which further oxidize and cross-link to form a three-dimensional hydrophobic polymer network. Simultaneously, the amylopectin in the glutinous rice juice gelatinizes under alkaline conditions, acting as a binder and template agent, regulating the formation of a fine CaCO3 crystal structure after Ca(OH)2 carbonization. Ultimately, the tung oil polymer network and the glutinous rice organic membrane are firmly bonded to the CaCO3 / Ca(OH)2 inorganic crystal framework through "molecular bridges," forming an interpenetrating, hydrophobic "brick-fiber" reinforced structure, thereby endowing the foamed lightweight clay with high compressive strength, toughness, and durability.

[0020] The combined effect of the above two aspects generates lightweight and high-strength foamed lightweight soil, which can be used for roadbed filling, pipe gallery backfilling, bridge backfilling and other projects, and has broad application prospects. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the foamed lightweight soil preparation method of the present invention.

[0023] Figure 2 This is a schematic diagram illustrating the strength formation mechanism of the foamed lightweight soil of the present invention.

[0024] Figure 3 This is a schematic diagram of the method for preparing glutinous rice juice in this invention. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-3 As shown in Example 1, a method for preparing a high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay specifically includes the following steps: Step S1: Mix slag, quicklime, tung oil, glutinous rice juice and water, and stir for 1 minute at a speed of 100 r / min to obtain a mixed slurry; Step S2: Dilute the foaming agent with water to obtain a foaming liquid, add the foaming liquid to a foaming machine, and foam to obtain foam. Step S3: Mix the slurry and foam evenly to obtain the foaming material; Step S4: Pour the foaming material into the mold, leave it at room temperature for one day, and after it solidifies and forms, cut the top surface flat, remove it from the mold with an air pump, and cure it according to standard for 7 days, 14 days and 28 days to obtain foamed lightweight soil.

[0027] The weight ratio of slag to quicklime in step S1 is 80:20, the amount of tung oil added is 1% of the sum of the masses of slag and quicklime, the amount of glutinous rice juice added is 7.5% of the sum of the masses of slag and quicklime, the water-to-solid ratio is 0.7, and the wet density is 700 kg / m³. 3 .

[0028] The granulated blast furnace slag powder is grade S95 with a density of 2.91 kg / m³. 3 Specific surface area is 441 m² 3 / kg.

[0029] The quicklime is industrial-grade quicklime powder with a calcium hydroxide content of 90%.

[0030] The tung oil mentioned is boiled tung oil with an iodine value of 160g / 100g and an acid value ≤5mgKOH / g.

[0031] The glutinous rice juice is prepared by the following steps: Step A1: After washing the glutinous rice with water, place the glutinous rice in a container, add water to completely submerge the glutinous rice, and soak for 6 hours to obtain pre-treated glutinous rice; Step A2: Mix the pretreated glutinous rice and water, and cook using a heat source for 0.5 hours to obtain a paste-like mixture; Step A3: Pour the paste mixture into a container lined with clean filter gauze, filter and retain the filtrate, cool to room temperature to obtain glutinous rice juice.

[0032] The mass ratio of pretreated glutinous rice to water in step A2 is 1:4.

[0033] The foaming liquid mentioned in step S2 is a foaming agent diluted 40 times with water. The foaming agent is a mixture of sodium fatty alcohol polyoxyethylene ether sulfate and sodium alkenyl sulfonate in a mass ratio of 1:1.

[0034] The density of the foam mentioned in step S2 is 50 kg / m³. 3 The settling distance and water leakage volume after standing for 1 hour were 4 mm and 24 mL, respectively, and the foaming ratio was 20 times.

[0035] Example 2, a method for preparing a high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay, specifically includes the following steps: Step S1: Mix slag, quicklime, tung oil, glutinous rice juice and water, and stir for 1.5 minutes at a speed of 100 r / min to obtain a mixed slurry; Step S2: Dilute the foaming agent with water to obtain a foaming liquid, add the foaming liquid to a foaming machine, and foam to obtain foam. Step S3: Mix the slurry and foam evenly to obtain the foaming material; Step S4: Pour the foaming material into the mold, leave it at room temperature for one day, and after it solidifies and forms, cut the top surface flat, remove it from the mold with an air pump, and cure it according to standard for 7 days, 14 days and 28 days to obtain foamed lightweight soil.

[0036] The weight ratio of slag to quicklime in step S1 is 80:20, the amount of tung oil added is 2% of the sum of the mass of slag and quicklime, the amount of glutinous rice juice added is 7.5% of the sum of the mass of slag and quicklime, the water-to-solid ratio is 0.7, and the wet density is 800 kg / m³. 3 .

[0037] The granulated blast furnace slag powder is grade S95 with a density of 2.91 kg / m³. 3 Specific surface area is 441 m² 3 / kg.

[0038] The quicklime is industrial-grade quicklime powder with a calcium hydroxide content of 90%.

[0039] The tung oil mentioned is raw tung oil.

[0040] The glutinous rice juice is prepared by the following steps: Step A1: After washing the glutinous rice with water, place the glutinous rice in a container, add water to completely submerge the glutinous rice, and soak for 7 hours to obtain pre-treated glutinous rice; Step A2: Mix the pretreated glutinous rice and water, and cook using a heat source for 0.8 hours to obtain a paste-like mixture; Step A3: Pour the paste mixture into a container lined with clean filter gauze, filter and retain the filtrate, cool to room temperature to obtain glutinous rice juice.

[0041] The mass ratio of pretreated glutinous rice to water in step A2 is 1:5.

[0042] The foaming liquid mentioned in step S2 is a foaming agent diluted 70 times with water, and the foaming agent is a mixture of sodium dodecyl sulfate and triethanolamine in a mass ratio of 1:1.

[0043] The density of the foam mentioned in step S2 is 50 kg / m³. 3 The settling distance and water leakage volume after standing for 1 hour were 4 mm and 24 mL, respectively, and the foaming ratio was 20 times.

[0044] Example 3, a method for preparing a high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay, specifically includes the following steps: Step S1: Mix slag, quicklime, tung oil, glutinous rice juice and water, and stir for 2 minutes at a speed of 100 r / min to obtain a mixed slurry; Step S2: Dilute the foaming agent with water to obtain a foaming liquid, add the foaming liquid to a foaming machine, and foam to obtain foam. Step S3: Mix the slurry and foam evenly to obtain the foaming material; Step S4: Pour the foaming material into the mold, leave it at room temperature for one day, and after it solidifies and forms, cut the top surface flat, remove it from the mold with an air pump, and cure it according to standard for 7 days, 14 days and 28 days to obtain foamed lightweight soil.

[0045] The weight ratio of slag and quicklime in step S1 is 80:20, the amount of tung oil added is 2% of the sum of the mass of slag and quicklime, the amount of glutinous rice juice added is 7.5% of the sum of the mass of slag and quicklime, the water-to-solid ratio is 0.8, and the wet density is 900 kg / m³. 3 .

[0046] The granulated blast furnace slag powder is grade S95 with a density of 2.91 kg / m³. 3 Specific surface area is 441 m² 3 / kg.

[0047] The quicklime is industrial-grade quicklime powder with a calcium hydroxide content of 90%.

[0048] The tung oil is a mixture of boiled tung oil and raw tung oil in a 1:1 mass ratio, with an iodine value of 160g / 100g and an acid value ≤5mgKOH / g.

[0049] The glutinous rice juice is prepared by the following steps: Step A1: After washing the glutinous rice with water, place the glutinous rice in a container, add water to completely submerge the glutinous rice, and soak for 8 hours to obtain pre-treated glutinous rice; Step A2: Mix the pre-treated glutinous rice and water, and cook using a heat source for 1 hour to obtain a paste-like mixture; Step A3: Pour the paste mixture into a container lined with clean filter gauze, filter and retain the filtrate, cool to room temperature to obtain glutinous rice juice.

[0050] The mass ratio of pretreated glutinous rice to water in step A2 is 1:6.

[0051] The foaming liquid mentioned in step S2 is a foaming agent diluted 100 times with water. The foaming agent is a mixture of sodium fatty alcohol polyoxyethylene ether sulfate, sodium alkenyl sulfonate, sodium dodecyl sulfate and triethanolamine in a mass ratio of 1:1:1:1.

[0052] The density of the foam mentioned in step S2 is 50 kg / m³. 3 The settling distance and water leakage volume after standing for 1 hour were 4 mm and 24 mL, respectively, and the foaming ratio was 20 times.

[0053] The main chemical components of the slag and lime in Examples 1-3 are shown in Table 1 below.

[0054] Table 1 After thoroughly mixing the foamed material, the flow value was measured. The flow values ​​of the foamed materials corresponding to Examples 1, 2, and 3 were measured to be 174.4 mm, 183.9 mm, and 192.4 mm, respectively. This meets the requirements of the "Technical Specification for Foamed Lightweight Soil Filling Engineering" (CJJ / T177-2012), which stipulates that the flow value of foamed lightweight soil should be between 160 and 200 mm, thus satisfying the requirements for construction pumping.

[0055] The flow value of foamed material decreases as the wet density decreases. When the wet density decreases from 900 kg / m³, the flow value of the foamed material decreases. 3 Reduced to 700 kg / m 3 At that time, the flow value of the foaming material decreased from 192.4 mm to 174.4 mm, a decrease of 9.36%. This is mainly because when the wet density is low, the foam content of the foaming material is high, which enhances the discontinuity between the slurries. In addition, the foaming material slurry with low wet density corresponds to a smaller sliding force, resulting in a smaller flow value.

[0056] The foamed lightweight soil samples prepared in Examples 1, 2, and 3 were subjected to compressive strength tests after reaching the preset age. The compressive strength tests were carried out in accordance with the "Technical Specification for Foamed Lightweight Soil Filling Engineering" (CJJ / T177-2012) and were conducted using a microcomputer-controlled electronic universal testing machine. The compressive strength of the SLTG-LS is shown in Table 2.

[0057] Table 2 Table 2 shows that the 7-day compressive strengths of Examples 1, 2, and 3 are 1.05, 1.98, and 2.46 MPa, respectively, and the 28-day compressive strengths are 1.99, 2.69, and 3.52 MPa, respectively. It can be seen that the 7-day compressive strength of the foamed lightweight soil is 1.05-2.46 MPa, much greater than 0.5 MPa, exhibiting high early strength; the 28-day compressive strength of the foamed lightweight soil is 1.99-3.52 MPa, much exceeding 1.0 MPa. Therefore, it can be concluded that the foamed lightweight soil exhibits excellent mechanical properties and can be used as a roadbed filler.

[0058] Comparing Examples 1 and 3, it can be seen that when the wet density is 700 kg / m³ 3 Increased to 900 kg / m 3At that time, the 7-day compressive strength of foamed lightweight soil increased from 1.05 MPa to 2.46 MPa, an increase of 134.29%; the 14-day compressive strength increased from 1.36 MPa to 3.06 MPa, an increase of 125%; and the 28-day compressive strength increased from 1.99 MPa to 3.52 MPa, an increase of 76.88%. It can be seen that increasing the wet density can significantly improve the compressive strength of foamed lightweight soil. The main reason is that as the wet density increases, the amount of solid materials (slag and quicklime) and additives (tung oil and glutinous rice juice) in the foamed lightweight soil increases, while the amount of foam decreases.

[0059] The compressive strength of foamed lightweight soil increases with the extension of curing time. Taking Example 1 as an example, when the curing time is extended from 7 days to 28 days, the compressive strength increases from 1.05 MPa to 1.99 MPa, an increase of 89.52%. This is mainly because with the extension of curing time, the slag undergoes a more complete hydration reaction, and the content of hydrated calcium silicate (CSH) increases, thereby improving the compressive strength of foamed lightweight soil.

[0060] In summary, the flow value and compressive strength of foamed lightweight soil meet the specifications, indicating that it has excellent fluidity and mechanical properties. It can be used as a roadbed filler, thereby achieving zero cement consumption and high-quality application of slag, reducing energy consumption and production costs, and meeting the development requirements of green building materials.

[0061] The above description is merely an example and illustration of the inventive concept. Those skilled in the art can make various modifications and additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the inventive concept or exceed the scope defined in the claims, they should all fall within the protection scope of the present invention.

Claims

1. A method for preparing a high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay, characterized in that: Specifically, the steps include the following: Step S1: Mix slag, quicklime, tung oil, glutinous rice juice and water, and stir for 1-2 minutes at a speed of 100 r / min to obtain a mixed slurry; Step S2: Dilute the foaming agent with water to obtain a foaming liquid, add the foaming liquid to a foaming machine, and foam to obtain foam. Step S3: Mix the slurry and foam evenly to obtain the foaming material; Step S4: Pour the foaming material into the mold, leave it at room temperature for one day, and after it solidifies and forms, cut the top surface flat and use an air pump to demold it to obtain foamed lightweight soil.

2. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 1, characterized in that: The weight ratio of slag and quicklime in step S1 is 80:20, the amount of tung oil is 2% of the sum of the mass of slag and quicklime, the amount of glutinous rice juice is 7.5% of the sum of the mass of slag and quicklime, and the water-to-solid ratio is 0.7-0.

8.

3. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 2, characterized in that: The granulated blast furnace slag powder is of grade S95 or above.

4. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 2, characterized in that: The quicklime is industrial-grade quicklime powder with a calcium hydroxide content of ≥90%.

5. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 2, characterized in that: The tung oil is one or a mixture of two types of tung oil, either boiled or raw, in any proportion.

6. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 2, characterized in that: The glutinous rice juice is prepared by the following steps: Step A1: After washing the glutinous rice with water, place the glutinous rice in a container, add water to completely submerge the glutinous rice, and soak for 6-8 hours to obtain pre-treated glutinous rice; Step A2: Mix the pretreated glutinous rice and water, and cook using a heat source for 0.5-1 hour to obtain a paste-like mixture; Step A3: Pour the paste mixture into a container lined with clean filter gauze, filter and retain the filtrate, cool to room temperature to obtain glutinous rice juice.

7. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 6, characterized in that: The mass ratio of pretreated glutinous rice to water in step A2 is 1:4-6.

8. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 1, characterized in that: The foaming liquid mentioned in step S2 is a foaming agent diluted with water 40-100 times. The foaming agent is one or more of the following: sodium fatty alcohol polyoxyethylene ether sulfate, sodium alkenyl sulfonate, sodium dodecyl sulfate, and triethanolamine, mixed in any proportion.

9. The method for preparing high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay according to claim 1, characterized in that: The density of the foam mentioned in step S2 is 50 kg / m³. 3 The settling distance and water leakage volume after standing for 1 hour were 4 mm and 24 mL, respectively, and the foaming ratio was 20 times.

10. A high-strength, environmentally friendly tung oil and glutinous rice juice foam lightweight clay, characterized in that: Prepared according to any one of the preparation methods described in claims 1-9.

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