Household garbage incinerator slag alkali slag aerated concrete block and preparation method thereof

Abstract

The invention provides a household garbage incinerator slag alkali slag aerated concrete block and a preparation method thereof. The granular furnace slag replaces part of river sand; the powdery slagreplaces part of mineral slag in alkali-activated cement; the aerated concrete block comprises dry materials of the composition in percentage by mass: 15-25% of alkali-activated cement doped with powdery furnace slag, 5-15% of lime, 37.0-43.2% of finely ground river sand, 10-15% of waste materials, 2-5% of gypsum, and 8-28% of the granular furnace slag, wherein the sum of the mass percentages ofthe components is 100%, the aluminum powder accounts for 0.07-0.10% of the total mass of the dry materials, and the mass ratio of hot water (at the temperature of 50+ / -2 DEG C) to the dry materials is0.45-0.55. The household garbage incinerator slag alkali slag aerated concrete block has the characteristics of high strength, low dry density, high yield and the like, not only can reduce the exploitation of river sand, but also can consume the river sand, so that the household garbage incinerator slag alkali slag aerated concrete block has good economic, social and environment-friendly benefits, and is suitable for large-scale popularization and application.

Description

technical field

[0001] The invention belongs to the field of engineering building aerated concrete, and in particular relates to a domestic waste incinerator slag alkali slag aerated concrete block. Background technique

[0002] Air-entrained concrete block is a new type of lightweight wall material used in industrial or civil buildings. It has a history of more than 40 years in the process of development, production and application. It has good thermal insulation and seismic performance. Good quality, easy processing, high temperature resistance, strong sound insulation, and easy machining, it is a new type of lightweight wall material that meets the functional requirements of modern buildings.

[0003] Ordinary Portland cement-lime-sand aerated concrete blocks are mainly mixed with finely ground river sand (70%), ordinary Portland cement (15%), lime (10%), gypsum (5%), etc. , made by stirring, pouring, foaming, cutting and autoclaving. Alkali-slag aerated concrete blocks...

Examples

Embodiment 1

[0029]The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: 25.0% of alkali-activated cement mixed with powdery slag, 5.0% of lime, 40% of finely ground river sand, and 10.0% of granular slag %, waste 15.0%, gypsum 5.0%, the sum of the mass percentages of the above components is 100%, the waste is the scrap of autoclaved sand aerated concrete, and the aluminum powder is 0.086% of the total mass of the dry material. The ratio of water to material is 0.55.

[0030] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash = 6.0:0.5:2 : 1.5, sodium sulfate is 3.5% of the total mass of slag, powdery slag, sodium sulfate, ordinary Portland cement and fly ash. The lime fineness is 18% (0.080mm square hole sieve allowance), and the f...

Embodiment 2

[0034] The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: alkali-activated cement mixed with powdery slag 17.0%, lime 15.0%, finely ground river sand 43.2%, granular slag 12.3% %, waste material 10.0%, gypsum 2.5%, the sum of the mass percentages of the above components is 100%, waste material is the leftover material of autoclaved sand aerated concrete, and aluminum powder is 0.07% of the total mass of dry material. The ratio of water to material is 0.45.

[0035] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash=4.5:1.5:3 : 1.0, sodium sulfate is 4% of the total mass of slag, powdery slag, ordinary Portland cement and fly ash. The lime fineness is 20% (0.080mm square hole sieve allowance), and the fineness of grou...

Embodiment 3

[0039] The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: alkali-activated cement mixed with powdery slag 15.0%, lime 6.0%, finely ground river sand 37.0%, granular slag 30.0% %, waste 10.0%, gypsum 2.0%, the sum of the mass percentages of the above components is 100%, waste is the leftover material of autoclaved sand aerated concrete, aluminum powder is 0.10% of the total mass of dry material, and the ratio of water to material is 0.52.

[0040] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash=4.0:2.0:4 : 0.5, sodium sulfate is 4.5% of the total mass of slag, powdery slag, sodium sulfate, ordinary Portland cement and fly ash. The lime fineness is 16% (0.080mm square hole sieve allowance), and the fineness of ground...

technical field

[0001] The invention belongs to the field of engineering building aerated concrete, and in particular relates to a domestic waste incinerator slag alkali slag aerated concrete block. Background technique

[0002] Air-entrained concrete block is a new type of lightweight wall material used in industrial or civil buildings. It has a history of more than 40 years in the process of development, production and application. It has good thermal insulation and seismic performance. Good quality, easy processing, high temperature resistance, strong sound insulation, and easy machining, it is a new type of lightweight wall material that meets the functional requirements of modern buildings.

[0003] Ordinary Portland cement-lime-sand aerated concrete blocks are mainly mixed with finely ground river sand (70%), ordinary Portland cement (15%), lime (10%), gypsum (5%), etc. , made by stirring, pouring, foaming, cutting and autoclaving. Alkali-slag aerated concrete blocks...

Examples

Embodiment 1

[0029]The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: 25.0% of alkali-activated cement mixed with powdery slag, 5.0% of lime, 40% of finely ground river sand, and 10.0% of granular slag %, waste 15.0%, gypsum 5.0%, the sum of the mass percentages of the above components is 100%, the waste is the scrap of autoclaved sand aerated concrete, and the aluminum powder is 0.086% of the total mass of the dry material. The ratio of water to material is 0.55.

[0030] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash = 6.0:0.5:2 : 1.5, sodium sulfate is 3.5% of the total mass of slag, powdery slag, sodium sulfate, ordinary Portland cement and fly ash. The lime fineness is 18% (0.080mm square hole sieve allowance), and the f...

Embodiment 2

[0034] The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: alkali-activated cement mixed with powdery slag 17.0%, lime 15.0%, finely ground river sand 43.2%, granular slag 12.3% %, waste material 10.0%, gypsum 2.5%, the sum of the mass percentages of the above components is 100%, waste material is the leftover material of autoclaved sand aerated concrete, and aluminum powder is 0.07% of the total mass of dry material. The ratio of water to material is 0.45.

[0035] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash=4.5:1.5:3 : 1.0, sodium sulfate is 4% of the total mass of slag, powdery slag, ordinary Portland cement and fly ash. The lime fineness is 20% (0.080mm square hole sieve allowance), and the fineness of grou...

Embodiment 3

[0039] The composition of an alkali slag aerated concrete block produced by domestic waste incineration slag is calculated according to the mass percentage of dry material: alkali-activated cement mixed with powdery slag 15.0%, lime 6.0%, finely ground river sand 37.0%, granular slag 30.0% %, waste 10.0%, gypsum 2.0%, the sum of the mass percentages of the above components is 100%, waste is the leftover material of autoclaved sand aerated concrete, aluminum powder is 0.10% of the total mass of dry material, and the ratio of water to material is 0.52.

[0040] The composition ratio of the alkali-activated cement is: the mixing ratio (mass ratio) of the alkali-activated cement mixed with powdery slag is: slag: powdery slag: ordinary Portland cement: fly ash=4.0:2.0:4 : 0.5, sodium sulfate is 4.5% of the total mass of slag, powdery slag, sodium sulfate, ordinary Portland cement and fly ash. The lime fineness is 16% (0.080mm square hole sieve allowance), and the fineness of ground...