Cementing material containing waste incineration fly ash, steel slag and mineral slag, and preparation method and application thereof

A technology for waste incineration fly ash and cementitious materials, applied in the field of building materials, can solve the problem of adding too much activator, etc., and achieve the effects of improving recycling rate, high compressive strength, leaching safety, and simple preparation method

Active Publication Date: 2020-02-21

北科蕴宏环保科技(北京)有限公司

1 Cites 10 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, the existing cementitious materials containing waste incineration fly ash have the following problems: it is nec...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Abstract

The invention relates to a cementing material containing waste incineration fly ash, steel slag and mineral slag, and a preparation method and an application thereof. The cementing material containingwaste incineration fly ash, steel slag and mineral slag mainly comprises, by weight, 0-60 parts of S95 slag, 0-60 parts of high-aluminum steel slag, 20-40 parts of the waste incineration fly ash and7-13 parts of desulfurized gypsum. A ratio of the cementing material to aggregate in the concrete or a filing material is 1:4 to 1:8, and the concentration is 77%. A large amount of the waste incineration fly ash is added, and the cementing material has good industrially-applied compressive strength without adding additives such as an excitant and an early strength agent, so the cementing materialcan be used as a cementing material of concrete, can also be used as a mining filling material, and is a good substitute of cement.

Application Domain

Cement production

Technology Topic

SlagAluminium +4

Image

Examples

Experimental program(5)
Comparison scheme(1)

Example Embodiment

[0055] Example 1

[0056] The high-alumina steel slag-slag-fly ash-desulfurized gypsum solidified heavy metal cementitious material of the present embodiment is mainly composed of the following components by mass percentage: 40% of S95 slag powder, 20% of high-alumina steel slag powder, and 30% of waste incineration fly ash , 10% desulfurization gypsum.

[0057] Among them, the chemical composition of S95 slag powder, fly ash, high alumina steel slag and desulfurization gypsum is shown in Table 1.

[0058] After pouring and molding, and curing to different ages, leaching toxicity test was carried out. The test method was the same as that of Comparative Example 1. The test results are shown in Table 2.

Example Embodiment

[0059] Example 2

[0060] A preparation method of a high-alumina steel slag-slag-fly ash-desulfurized gypsum solidified heavy metal cementitious material of the present embodiment is mainly composed of the following components by mass percentage: S95 slag powder 20%, high-alumina steel slag powder 40%, garbage Incineration fly ash 30%, desulfurization gypsum 10%.

[0061] Among them, the chemical composition of S95 slag powder, fly ash, high alumina steel slag and desulfurization gypsum is shown in Table 1.

[0062] After pouring and molding, and curing to different ages, leaching toxicity test was carried out. The test method was the same as that of Comparative Example 1. The test results are shown in Table 2.

Example Embodiment

[0063] Example 3

[0064] A method for preparing a high-alumina steel slag-slag-fly ash-desulfurized gypsum solidified heavy metal cementitious material in this embodiment is mainly composed of the following components in percent by mass: 60% of high-alumina steel slag powder, 30% of waste incineration fly ash %, desulfurization gypsum 10%.

[0065] Among them, the chemical composition of fly ash, high alumina steel slag and desulfurization gypsum is shown in Table 1.

[0066] After pouring and molding, and curing to different ages, leaching toxicity test was carried out. The test method was the same as that of Comparative Example 1. The test results are shown in Table 2.

[0067] Table 1 Chemical composition % analysis of raw materials

[0068]

[0069]

[0070] Table 2 The leaching concentration of heavy metals (μg/L) in pulp test blocks of different ages

[0071]

[0072]

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

Classification and recommendation of technical efficacy words

Improve recycling rates
Raw material composition is simple

Cementing material containing waste incineration fly ash, steel slag and mineral slag, and preparation method and application thereof

A technology for waste incineration fly ash and cementitious materials, applied in the field of building materials, can solve the problem of adding too much activator, etc., and achieve the effects of improving recycling rate, high compressive strength, leaching safety, and simple preparation method

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Repairing process of radial tyre of passenger car

Physical method for separating electrode current collector from electrode material of lithium ion battery

Process for recycling and collecting open residual ore

Method for generating regenerated diaphragm through extracting PVDF from waste diaphragms

Paper and plastic separation technology of waste paper aluminum plastic composite packaging materials

Classification and recommendation of technical efficacy words

Waste and old plastic product recovering apparatus and use method thereof

Synthetic method of iodized vegetable fatty acids and their esters

Recycling process of sintering neodymium iron boron discard black wafer

Resource utilization method for metal surface treatment sludge

Method for recycling zinc oxide waste desulfurizers and co-producing ammonium sulfate

Coolplus moisture-absorption sweat-releasing and warming Raschel woolen blanket

Near-infrared light emitting microcrystalline glass with embedded Er:YAG microcrystalline phase and preparation method of microcrystalline glass

Read bean probiotics health biscuit

Concrete for quick pavement repair

Cleanser for optical glass