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Industrial byproduct gypsum waste rubber particle wall body material and preparation method thereof

A technology for industrial by-products of gypsum and wall materials, applied in the field of building materials, can solve problems such as poor thermal insulation performance and high apparent density, and achieve the effects of solving processing problems, improving impact resistance, and achieving significant social and economic benefits.

Inactive Publication Date: 2019-01-25
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, with the prohibition of the use of sintered clay bricks in our country, the current wall materials in construction projects are commonly used concrete solid bricks, concrete hollow blocks, and added concrete blocks, etc., which have a large apparent density. Disadvantages such as poor insulation performance

Method used

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  • Industrial byproduct gypsum waste rubber particle wall body material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: The industrial by-product gypsum waste rubber particle wall material of this embodiment is made of the following raw materials in weight percentage: 50% of phosphogypsum hemihydrate, 8% of waste rubber particles, 2% of modifier, and 40% of water. Waste rubber particles are particles processed from waste tires, and the maximum particle size is less than 0.18mm. The modifying agent is composed of the following medicaments in weight ratio, a mixture of 0.75% polycarboxylate high-performance water reducer, 1% hydroxypropyl methylcellulose and 0.25% hydroxycarboxylic acid retarder.

[0023] The preparation method of the industrial by-product gypsum waste rubber particle wall material of the present embodiment is:

[0024] (1) First, heat phosphogypsum in a dry environment at 140°C for 8 hours to dehydrate it into hemihydrate phosphogypsum, and grind the hemihydrate phosphogypsum into a powder with a particle size of 0.074-0.1mm; wherein the phosphogypsum is sul...

Embodiment 2

[0027] Embodiment 2: The industrial by-product gypsum waste rubber particle wall material of this embodiment is made of the following raw materials in weight percentage: 52% desulfurized gypsum hemihydrate, 12% waste rubber particles, 3% modifier, and 35% water. Waste rubber particles are particles processed from waste tires, and the maximum particle size is less than 0.18mm. The modifying agent is a mixture of 1.25% polycarboxylate high-performance water reducer, 1.5% hydroxypropyl methylcellulose and 0.25% hydroxycarboxylic acid retarder.

[0028] The preparation method of the industrial by-product gypsum waste rubber particle wall material in this embodiment, the specific steps are as follows:

[0029] (1) Heating the desulfurized gypsum in a dry environment at 142°C for 7 hours to dehydrate it into semi-hydrated desulfurized gypsum, and grind it into a powder with a particle size of 0.074-0.109 mm; the desulfurized gypsum is gypsum produced by power plant exhaust;

[0030...

Embodiment 3

[0032] Embodiment 3: The industrial by-product gypsum waste rubber particle wall material in this embodiment is made of the following raw materials in weight percentage: 55% hemihydrate fluorogypsum, 3% waste rubber particles, 5% modifier, and 37% water. Waste rubber particles are particles processed from waste tires, and the maximum particle size is less than 0.18mm. The modifying agent is composed of the following agents in weight ratio, a mixture of 1.5% polycarboxylate high-performance water reducer, 2.25% hydroxypropyl methylcellulose and 1.25% hydroxycarboxylic acid retarder.

[0033] The preparation method of the industrial by-product gypsum waste rubber particle wall material of the present embodiment is:

[0034] (1) First, heat the fluorogypsum in a dry environment at 145°C for 6 hours to dehydrate it into hemihydrate fluorogypsum, and grind the hemihydrate fluorogypsum into a powder with a particle size of 0.074-0.100mm;

[0035] (2) 55% of the following mass perce...

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Abstract

The invention discloses an industrial byproduct gypsum waste rubber particle wall body material and a preparation method thereof, which belongs to the technical field of construction materials. The industrial byproduct gypsum waste rubber particle wall body material is prepared from the following raw materials by weight percent: 50 to 55 percent of semi-hydrate industrial byproduct gypsum, 3 to 12percent of waste rubber particles, 2 to 5 percent of modifier, and 35 to 40 percent of water. The preparation method comprises the following steps: heating and dehydrating industrial byproduct gypsumto form semi-hydrate industrial byproduct gypsum, grinding the semi-hydrate industrial byproduct gypsum into powder with a granularity of 0.074 to 0.109 mm, uniformly mixing and stirring the semi-hydrate industrial byproduct gypsum powder, waste rubber particles, modifier and water, pouring the mixture into a mold, naturally drying, and removing the mold, thus obtaining the industrial byproduct gypsum waste rubber particle wall body material. The hydration cementing effect of the treated semi-hydrate industrial byproduct gypsum is used for improving the strength of the wall body material, andthe waste rubber particles are used for reducing the unit weight of the wall body material and improving the sound insulation of a wall body.

Description

technical field [0001] The invention relates to an industrial by-product gypsum waste rubber particle wall material and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] With the rapid development of my country's economy, a huge amount of various wastes are generated every year. Industrial by-product gypsum, as the name suggests, is an industrial waste residue that is accompanied by calcium sulfate as the main component in the process of industrial production. The by-product gypsum has different names in different industries. For example, phosphate fertilizer companies call it phosphogypsum, and phosphate fertilizer companies produce 5 tons of phosphogypsum for one ton of phosphate fertilizer. The industrial by-product gypsum is now about 184 million tons per year, and phosphogypsum is about 80 million tons. [0003] At the same time, my country is also one of the countries that generate the largest amount o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B111/52
CPCC04B28/142C04B28/143C04B28/144C04B2111/52C04B2201/50C04B18/22C04B24/24C04B24/383C04B24/06
Inventor 张毅赵志曼李丹吴磊赵彬宇王思骅
Owner KUNMING UNIV OF SCI & TECH
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