阅读说明：本技术 一种石英渣水泥砌块 (Quartz slag cement building block ) 是由 白燕 黄福全 王富 于 2019-09-29 设计创作，主要内容包括：本发明涉及建筑材料加工技术领域,具体涉及一种石英渣水泥砌块。所述石英渣水泥砌块包括上层体A和下层体B；上层体A包括青钢砂100～125份、水泥混合材22～26份、脱硫石膏粉3～5份、95％的季戊四醇1～2份、石英粉350～380份、氯化锌2～4份；下层体B包括石英渣110～125份、0.5～0.8％的聚丙烯酰胺13～17份、水泥35～40份、农作物秸秆300～500份、活性炭4～7份、高岭土12～15份、硅藻土8～17份；选择石英和农作物秸秆作主要原材料,将石英粉和青钢砂混合制备表层粗糙的上层体A,有效克服砖块遇水湿滑的现状；再将石英渣和农作物秸秆、高岭土等制备成下层体B,有效实现农作物秸秆资源的循环利用解决农作物秸秆难于处理的现状。(The invention relates to the technical field of building material processing, in particular to a quartz slag cement building block. The quartz slag cement building block comprises an upper layer body A and a lower layer body B; the upper layer body A comprises 100-125 parts of green steel grit, 22-26 parts of cement mixture, 3-5 parts of desulfurized gypsum powder, 1-2 parts of 95% pentaerythritol, 350-380 parts of quartz powder and 2-4 parts of zinc chloride; the lower layer body B comprises 110-125 parts of quartz slag, 13-17 parts of 0.5-0.8% polyacrylamide, 35-40 parts of cement, 300-500 parts of crop straws, 4-7 parts of activated carbon, 12-15 parts of kaolin and 8-17 parts of diatomite; quartz and crop straws are selected as main raw materials, quartz powder and green steel sand are mixed to prepare an upper layer body A with a rough surface layer, and the current situation that bricks are wet and slippery when meeting water is effectively overcome; and then quartz slag, crop straws, kaolin and the like are prepared into a lower layer body B, so that the cyclic utilization of crop straw resources is effectively realized, and the current situation that the crop straws are difficult to treat is solved.)

1. The quartz slag cement building block is characterized by comprising an upper layer body A and a lower layer body B;

the upper layer body A comprises the following raw materials in parts by weight:

100-125 parts of green steel sand, 22-26 parts of cement admixture, 3-5 parts of desulfurized gypsum powder, 1-2 parts of 95% pentaerythritol, 350-380 parts of quartz powder and 2-4 parts of zinc chloride;

the lower layer body B comprises the following raw materials in parts by weight:

110-125 parts of quartz slag, 13-17 parts of 0.5-0.8% polyacrylamide, 35-40 parts of cement, 300-500 parts of crop straw, 4-7 parts of active carbon, 12-15 parts of kaolin and 8-17 parts of diatomite;

wherein the granularity of the green steel grit is 1-2 mm;

the grain size of the crop straws is 0.8-1.2 mm;

the granularity of the quartz slag is 0.2-0.3 mm.

2. The quartz slag cement block as claimed in claim 1, wherein the cement admixture is prepared by the following method:

crushing electrolytic manganese slag to the particle size of 2-3 mm, mixing with marble powder with the particle size of 0.5-0.8 mm, feeding into a fluidized bed furnace, and calcining at the temperature of 550-750 ℃ for 1-1.5 h to obtain a cement mixture;

the mixing ratio of the electrolytic manganese slag to the marble powder is 100: 7-9.

3. The coal gasification ash-based building block according to claim 1, wherein the upper body A is prepared by the following method:

respectively mechanically crushing the cement mixture, the desulfurized gypsum powder, the quartz powder and the zinc chloride to the granularity of less than or equal to 0.8mm in parts by weight;

cleaning and drying the green steel grit until the water content is less than or equal to 9%, sending the green steel grit into a mixer of 1300-1350 r/min, mixing the crushed cement mixture, the desulfurized gypsum powder, the quartz powder and the zinc chloride, uniformly mixing the mixture, adding a proper amount of water, adjusting the stirring speed to 580-650 r/min, stirring the mixture into slurry with the consistency of 1.2-1.4, adding pentaerythritol, and continuously stirring the mixture for 30-35 min to prepare mixed slurry;

and pouring the mixed slurry into a mold frame by fixed-point pouring at the temperature of 85-90 ℃, keeping the temperature for 65-70 min, demolding, cutting, standing and maintaining, controlling the temperature of a standing room to be 75-80 ℃ and the humidity to be 85-90%, and maintaining for 1-2 h to obtain the cured upper layer body A.

4. The quartz slag cement block as claimed in claim 1, wherein the lower body B is prepared by the following method:

mixing quartz slag and polyacrylamide solution, and uniformly stirring to obtain a mixture; adding epoxidized soybean oil into the mixture, continuously stirring, adding a proper amount of water, and stirring at a stirring speed of 120-130 r/min to obtain slurry S with the consistency of 1.2-1.5;

respectively taking kaolin, diatomite and active carbon, grinding until the granularity is less than or equal to 0.8mm, and mixing with cement and crop straws after dry mixing uniformly; after the mixture is uniformly dry-mixed again, adding a proper amount of water, and stirring the mixture at the stirring speed of 85 to 95r/min to form slurry M with the consistency of 1.4 to 1.5;

and mixing the slurry S into the slurry M, uniformly mixing, controlling the consistency of the mixture to be 1.3-1.4, sending the mixture into a reaction kettle, and reacting for 4-6 hours under the conditions of the pressure of 13-15 Mpa, the temperature of 180-200 ℃ and the stirring speed of 100-110 r/min to obtain the thermal state lower layer body B.

5. The quartz cement block as claimed in claim 1, wherein the quartz cement block is prepared by the following method:

pouring the cured upper layer A into a mold, filling, and compressing to 2/5 of the depth of the mold under the conditions that the temperature is 385-500 ℃ and the pressure is 3.2-4.6 MPa; pouring the hot lower layer B to the position above the compressed cured upper soil body A, filling the mold, and compressing the mold to 3/5 of the depth of the mold under the same condition; pouring the hot layer body B, refilling the mould, and compressing to 4/5 of the depth of the mould under the same condition; pouring the hot layer body B, refilling the mould, and compressing to 4/5 of the depth of the mould under the same condition;

regulating the temperature to 450-550 ℃ and the pressure to 1.3-1.8 MPa, curing for 1-1.5 hours in a closed manner, demolding, shaping and building, then conveying into a static parking room for curing, controlling the temperature of the static parking room to 65-70 ℃ and the humidity to 78-80%, and curing for 2-3 hours;

and after the maintenance is finished, sending the building blocks into a rain-sheltering ventilation room with air humidity of 15-20%, flatly stacking the building blocks, and naturally maintaining the building blocks for 4-5 days to obtain the quartz slag cement building blocks.

6. The quartz slag cement block according to claim 1, wherein the quartz slag cement block has the following specifications:

the length is 20-35 cm, the width is 10-30 cm, and the thickness is 5-8 cm;

the thickness of the upper layer A is 2/5 of the total thickness of the quartz slag cement building block, and the thickness of the middle layer B is 3/5 of the total thickness of the quartz slag cement building block.

7. The quartz cement block as claimed in claim 1, wherein the upper body a faces upward and the lower body B faces downward when applied to a building.

8. The quartz slag cement block as claimed in claim 1, wherein the crop straw comprises one or more of soybean straw, sorghum straw, corn straw and rape straw.

Technical Field

The invention relates to the technical field of building material processing, in particular to a quartz slag cement building block.

Background

The quartz sand is a non-metallic mineral substance, is oneA hard, wear-resistant and chemically stable silicate mineral contains SiO as main mineral component₂。

The color of the quartz sand is milky white or colorless and semitransparent, the hardness is 7, and the quartz sand is an important industrial mineral raw material and is not a chemical dangerous article.

A large amount of crop straws are produced in China every year, and most of the treatment methods of the crop straws are used as solid wastes for stacking or landfill treatment, so that the method is huge in poverty and huge in waste of resources; or directly incinerated to cause environmental pollution.

Moreover, most of the existing bricks for building sidewalks are hexahedral structures, and the shapes of six surfaces are completely the same, so that when the bricks are used for paving sidewalks, the current situation that the bricks are wet and slippery when meeting water needs to be overcome, and the walking safety of people is ensured; in the existing sidewalk brick processing technology, bricks are processed into bricks with rough surfaces and skid resistance; however, the bricks are heavy, the laying area of each brick is small, the physical strength of constructors is greatly consumed during construction, and brick processing raw materials are also greatly consumed; meanwhile, when the existing sidewalk brick blocks are laid on the pavement, the surface is too hard, and the foot pain of pedestrians is easy to occur when the pedestrians walk for a long time.

Disclosure of Invention

In order to solve the problems, the invention provides a quartz slag cement building block, which needs to solve the following three problems:

1. the usage amount of quartz sand is reduced, and mineral resources are saved;

2. the current situation that the existing crop straws are not well treated is solved, and the secondary utilization of crop straw resources is realized;

3. the current situations that the prior sidewalk brick has hard appearance, insufficient skid resistance and difficult construction are changed.

The invention is realized by the following technical scheme:

the quartz slag cement building block comprises an upper layer body A and a lower layer body B;

the upper layer body A comprises the following raw materials in parts by weight:

100-125 parts of green steel sand, 22-26 parts of cement admixture, 3-5 parts of desulfurized gypsum powder, 1-2 parts of 95% pentaerythritol, 350-380 parts of quartz powder and 2-4 parts of zinc chloride;

the lower layer body B comprises the following raw materials in parts by weight:

110-125 parts of quartz slag, 13-17 parts of 0.5-0.8% polyacrylamide, 35-40 parts of cement, 300-500 parts of crop straw, 4-7 parts of active carbon, 12-15 parts of kaolin and 8-17 parts of diatomite;

wherein the granularity of the green steel grit is 1-2 mm;

the grain size of the crop straws is 0.8-1.2 mm;

the granularity of the quartz slag is 0.2-0.3 mm.

Preferably, the cement admixture is prepared by the following method:

crushing electrolytic manganese slag to the particle size of 2-3 mm, mixing with marble powder with the particle size of 0.5-0.8 mm, feeding into a fluidized bed furnace, and calcining at the temperature of 550-750 ℃ for 1-1.5 h to obtain a cement mixture;

the mixing ratio of the electrolytic manganese slag to the marble powder is 100: 7-9.

Preferably, the upper layer body A is prepared by the following method:

respectively mechanically crushing the cement mixture, the desulfurized gypsum powder, the quartz powder and the zinc chloride to the granularity of less than or equal to 0.8mm in parts by weight;

cleaning and drying the green steel grit until the water content is less than or equal to 9%, sending the green steel grit into a mixer of 1300-1350 r/min, mixing the crushed cement mixture, the desulfurized gypsum powder, the quartz powder and the zinc chloride, uniformly mixing the mixture, adding a proper amount of water, adjusting the stirring speed to 580-650 r/min, stirring the mixture into slurry with the consistency of 1.2-1.4, adding pentaerythritol, and continuously stirring the mixture for 30-35 min to prepare mixed slurry;

and pouring the mixed slurry into a mold frame by fixed-point pouring at the temperature of 85-90 ℃, keeping the temperature for 65-70 min, demolding, cutting, standing and maintaining, controlling the temperature of a standing room to be 75-80 ℃ and the humidity to be 85-90%, and maintaining for 1-2 h to obtain the cured upper layer body A.

Preferably, the lower layer body B is prepared by the following method:

mixing quartz slag and polyacrylamide solution, and uniformly stirring to obtain a mixture; adding epoxidized soybean oil into the mixture, continuously stirring, adding a proper amount of water, and stirring at a stirring speed of 120-130 r/min to obtain slurry S with the consistency of 1.2-1.5;

respectively taking kaolin, diatomite and active carbon, grinding until the granularity is less than or equal to 0.8mm, and mixing with cement and crop straws after dry mixing uniformly; after the mixture is uniformly dry-mixed again, adding a proper amount of water, and stirring the mixture at the stirring speed of 85 to 95r/min to form slurry M with the consistency of 1.4 to 1.5;

and mixing the slurry S into the slurry M, uniformly mixing, controlling the consistency of the mixture to be 1.3-1.4, sending the mixture into a reaction kettle, and reacting for 4-6 hours under the conditions of the pressure of 13-15 Mpa, the temperature of 180-200 ℃ and the stirring speed of 100-110 r/min to obtain the thermal state lower layer body B.

Preferably, the quartz slag cement building block is prepared by the following method:

pouring the cured upper layer A into a mold, filling, and compressing to 2/5 of the depth of the mold under the conditions that the temperature is 385-500 ℃ and the pressure is 3.2-4.6 MPa; pouring the hot lower layer B to the position above the compressed cured upper soil body A, filling the mold, and compressing the mold to 3/5 of the depth of the mold under the same condition; pouring the hot layer body B, refilling the mould, and compressing to 4/5 of the depth of the mould under the same condition; pouring the hot layer body B, refilling the mould, and compressing to 4/5 of the depth of the mould under the same condition;

regulating the temperature to 450-550 ℃ and the pressure to 1.3-1.8 MPa, curing for 1-1.5 hours in a closed manner, demolding, shaping and building, then conveying into a static parking room for curing, controlling the temperature of the static parking room to 65-70 ℃ and the humidity to 78-80%, and curing for 2-3 hours;

and after the maintenance is finished, sending the building blocks into a rain-sheltering ventilation room with air humidity of 15-20%, flatly stacking the building blocks, and naturally maintaining the building blocks for 4-5 days to obtain the quartz slag cement building blocks.

Preferably, the quartz slag cement building blocks have the following specifications:

the length is 20-35 cm, the width is 10-30 cm, and the thickness is 5-8 cm;

the thickness of the upper layer A is 2/5 of the total thickness of the quartz slag cement building block, and the thickness of the middle layer B is 3/5 of the total thickness of the quartz slag cement building block.

Preferably, when the quartz slag cement building block is applied to a building, one surface of the upper layer body A faces upwards, and one surface of the lower layer body B faces downwards and is close to the ground.

Preferably, the crop straws comprise one or more of soybean straws, sorghum straws, corn straws and rape straws.

The invention has the beneficial effects that:

compared with the prior art, quartz and crop straws are selected as main raw materials, quartz powder and green steel sand are mixed to prepare the upper layer body A with a rough surface layer, and the current situation that bricks are wet and slippery when meeting water is effectively overcome; then quartz slag, crop straws, kaolin and the like are prepared into a lower layer body B, so that the cyclic utilization of crop straw resources is effectively realized, and the current situation that the crop straws are difficult to treat is solved; finally, the upper layer and the lower layer are extruded and bonded together to form the quartz slag cement building block special for the sidewalk, the finished building block is light in weight and large in unit laying area, and the workload of construction personnel is greatly reduced;

meanwhile, the lower layer body of the finished product quartz slag cement building block is soft, when a human body steps on the building block, the building block slightly sinks along with the human body, when the human body leaves, the building block automatically protrudes upwards and recovers to the original state, and the condition that the existing sidewalk building block is hard and people feel painful when walking on a sidewalk for a long time is effectively relieved.

Detailed Description

The present invention will be described in further detail with reference to specific embodiments, but the technical solutions provided by the present invention include not only the contents shown in the examples.