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Novel building mortar taking iron tailing powder as raw material and preparation method of novel building mortar

A technology of iron tailings powder and construction sand, applied in the field of building materials, can solve the problems of waste iron tailings accumulation and ineffective recycling and reuse

Pending Publication Date: 2021-07-30
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the serious accumulation of existing waste iron tailings, which cannot be effectively recycled and reused, and the existing organic and inorganic thermal insulation mortars cannot be widely used in various interior and exterior wall insulation and have relatively high requirements for wall insulation. To solve the problem of high engineering, a new type of mortar for construction with iron tailings powder as raw material and its preparation method are provided

Method used

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  • Novel building mortar taking iron tailing powder as raw material and preparation method of novel building mortar
  • Novel building mortar taking iron tailing powder as raw material and preparation method of novel building mortar
  • Novel building mortar taking iron tailing powder as raw material and preparation method of novel building mortar

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preparation example Construction

[0054] The preparation method of construction mortar of the present invention specifically comprises the following steps:

[0055] Step 1. Take the weight of the required raw materials respectively according to the test proportion and dosage, and weigh them for future use;

[0056] Step 2: Using water-diluted modifier and part of VAE latex powder to fully wet the polystyrene particles and ceramic sand particles, then put in cement, mix evenly, and perform aging pretreatment;

[0057] Step 3. Then add the remaining VAE latex powder and cement, activated iron tailings powder, fiber, water retaining agent and waterproofing agent, add reserved water while stirring, and fully stir for 3 to 5 minutes.

[0058] The present invention makes full use of the abandoned iron tailings, and prepares a new type of thermal insulation mortar by using the waste after mineral processing and organic-inorganic composite binary aggregate, and mixes an appropriate amount of fiber, latex powder and ot...

Embodiment 1

[0061] Each material used in the preparation was weighed according to the following metering fraction, wherein the total volume of ceramic sand particles (L): the total volume of polystyrene particles (L) = 1:9. That is, ceramic sand particles 8.0%, polystyrene particles 1.0%, activated iron tailings powder 14.0%, ordinary Portland cement 30.0%, PP fiber 0.35%, VAE latex powder 1.55%, modifier 0.1%, cellulose ether 0.35%, waterproofing agent 1.55%, and the rest is water; then use water-diluted modifier and 1 / 3 VAE latex powder to fully wet the polystyrene particles and ceramic sand particles, and then add 1 / 4 amount of Cement, mix evenly, and carry out aging pretreatment; finally, mix and stir the pretreated thermal insulation aggregate with the remaining VAE latex powder and cement, activated iron tailings powder, fiber, water-retaining agent and waterproof agent, Stirring is continued for another 3 minutes to prepare thermal insulation mortar. When activating the iron tailin...

Embodiment 2

[0063] Weigh each material used in the preparation according to the following metering fractions, the total volume of ceramic sand particles (L): the total volume of polystyrene particles (L) = 1:4. That is, ceramic sand particles 16.2%, polystyrene particles 0.75%, activated iron tailings powder 13.8%, ordinary portland cement 29.0%, PP fiber 0.27%, VAE latex powder 1.39%, modifier 0.09%, cellulose ether 0.27%, waterproofing agent 1.39%, and the rest is water. Then prepare thermal insulation mortar according to the preparation method of Example 1. When activating the iron tailings, the content of the active activator is controlled to be 1.2%, and the co-grinding time is controlled to be 0.8h.

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Abstract

The invention discloses novel building mortar taking iron tailing powder as a raw material and a preparation method thereof, and belongs to the technical field of building materials. The novel building mortar taking the iron tailing powder as the raw material is composed of a thermal insulation aggregate, a cementing material, an additive and water, the addition amount of the thermal insulation aggregate, the addition amount of the cementing material and the addition amount of the additive respectively account for 8.5%-29.0%, 37%-46% and 3.0%-3.9% of the total amount of the mortar, the thermal insulation aggregate is composed of polystyrene particles and pottery sand particles, and the cementing material is composed of activated iron tailing powder and cement. According to the technical scheme, the waste iron tailings can be fully developed and utilized to prepare the cementing material, and the prepared thermal insulation mortar is high in strength and good in fire resistance, durability and waterproof thermal insulation performance, can be effectively suitable for places with strict external wall thermal insulation and fireproof requirements, and is extremely low in cost.

Description

technical field [0001] The invention belongs to the technical field of building materials, and more specifically relates to a novel low-cost, high-performance, energy-saving and environment-friendly insulating mortar prepared with iron tailings powder as the base material of a composite cementitious material and a preparation method thereof. Background technique [0002] Iron tailings are a kind of solid or powdery residue waste discharged from mining and metallurgical industries. If iron tailings are not treated effectively, it will cause serious pollution to the environment. The comprehensive utilization rate of iron tailings in my country is only about 7%, but developed countries have already reached 60%. Current research has found that iron tailings can be used in the preparation of construction materials. Therefore, applying waste iron tailings to wall insulation technology, rationally disposing of waste iron tailings and reducing energy consumption have become the foc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20C04B111/28C04B111/40
CPCC04B28/04C04B2111/00017C04B2111/40C04B2111/28C04B2111/20C04B18/027C04B16/08C04B18/12C04B24/26C04B24/383C04B16/0633C04B2103/0068C04B2103/65
Inventor 于峰许鹏程秦尹方圆卜双双
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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