WO2008138170A1 - Dry powder mortar made from steel slag and a method for producing it - Google Patents

Dry powder mortar made from steel slag and a method for producing it Download PDF

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Publication number
WO2008138170A1
WO2008138170A1 PCT/CN2007/001557 CN2007001557W WO2008138170A1 WO 2008138170 A1 WO2008138170 A1 WO 2008138170A1 CN 2007001557 W CN2007001557 W CN 2007001557W WO 2008138170 A1 WO2008138170 A1 WO 2008138170A1
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Prior art keywords
steel slag
cement
mortar
fly ash
slag
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PCT/CN2007/001557
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French (fr)
Chinese (zh)
Inventor
Jianwei Wang
Original Assignee
Cao, Bugao
Hou, Yucai
Wang, Pengcheng
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Application filed by Cao, Bugao, Hou, Yucai, Wang, Pengcheng filed Critical Cao, Bugao
Priority to PCT/CN2007/001557 priority Critical patent/WO2008138170A1/en
Publication of WO2008138170A1 publication Critical patent/WO2008138170A1/en

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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/08Slag cements
    • C04B28/082Steelmaking slags; Converter slags
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/29Frost-thaw resistance
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

Dry powder mortar made from steel slag is disclosed, and it is mainly made from, in wt%, steel slag sand of 60-75 and cement and fly ash of 20-40, wherein a ratio of steel slag sand to cement and fly ash is 2:3. A method for producing the mortar comprises drying the steel slag to water content of 0.5% below, and making it into steel slag sand with particle diameter of 2.5 mm below; mixing the steel slag sand of 60-75% and the cement and fly ash, in a ratio of 2:3, of 25-40% to prepare a mixture; pulse homogenizing the mixture to uniformity of CV<0.3%; and packing to obtain the final mortar. The mortar has all of properties that traditional mortar has, and can be used in place of the conventional one. The mortar has good durability, freeze proof and binding strength, and its cost is 50% of cost of the conventional one. The invention uses a great deal of the steel slag, makes resources recycle, and solves problems of pollution from waste materials of steel-making plant.

Description

钢渣干粉砂浆及其加工工艺 技术领域 本发明涉及建筑材料的技术领域,特别与利用钢渣生产干粉砂浆 的配方及其加工工艺有关。 背景技术 干粉砂浆又称干混砂浆, 是将干粉状的骨料 (砂子)、 胶凝材料 (粉煤灰、 水泥)、 化学添加剂等通过计量控制, 科学配比、 混合均 质、化学反应、 机械化生产、产品包装或散装物流运送到现场, 作业 时只要按一定比例加水搅匀, 即可直接使用的新型干粉类砂浆。  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the technical field of building materials, and in particular to a formulation for producing dry powder mortar using steel slag and a processing technique thereof. BACKGROUND OF THE INVENTION Dry mortar is also known as dry mortar. It is a dry powdered aggregate (sand), a cementitious material (fly ash, cement), chemical additives, etc., and is scientifically controlled, mixed and homogenized, and chemically reacted. Mechanized production, product packaging or bulk logistics are transported to the site. When working, just add a certain proportion of water and mix well, then you can use the new dry powder mortar directly.
国内外现有的干粉砂浆是将砂子进行烘干然后经筛分,按常规砂 浆配合比的配比量, 将干砂、水泥、辅料和添加剂称量后进行单一机 械混合搅拌后包装, 就成为干粉砂浆产品。这种产品原材料紧张、价 格高, 致使生产成本很高, 比较难适应国内市场的价格承受力。  The existing dry mortar at home and abroad is to dry the sand and then sieve it. According to the proportion of the conventional mortar mix ratio, the dry sand, cement, auxiliary materials and additives are weighed and then packaged by a single mechanical mixing and mixing. Dry mortar products. The shortage of raw materials and high prices of such products has resulted in high production costs and it is difficult to adapt to the price tolerance of the domestic market.
钢渣是指炼钢后所出的渣,其渣经破碎后吸出含有的铁块及碎铁 进行回收后, 剩下钢渣(也称尾渣)。 钢渣含有三氧化二硅、 三氧化 二铝、三氧化二铁、 氧化钙、氧化镁等, 其质硬(摩氏硬度为 8. 5度 左右), 比重为 1. 45 B屯左右 /M3。 钢渣一般做为工业废弃物堆存, 目 前还没有得到充分利用。 Steel slag refers to the slag which is produced after steel making. After the slag is crushed, the iron and broken iron are taken out for recovery, and the steel slag (also called tailings) is left. The steel slag contains silicon trioxide, aluminum oxide, ferric oxide, calcium oxide, magnesium oxide, etc., and has a hard mass (Mohs hardness of about 8.5 degrees), and a specific gravity of about 1.45 B屯/M 3 . Steel slag is generally stored as industrial waste and has not yet been fully utilized.
本发明人经过大量试验研究发现: 钢渣的特性适合于干粉砂浆, 有意变废为宝, 以降低干粉砂浆的生产成本,遂专门研发了利用钢渣 生产干粉砂浆的配方及加工工艺, 本案油然而生。 发明内容 本发明的目的在于提供一种钢渣干粉砂浆及其加工工艺,以充分 利用钢渣, 变废为宝, 降低砂浆成本。  The inventors have found through extensive experiments that the characteristics of steel slag are suitable for dry mortar, intentionally turning waste into treasure, to reduce the production cost of dry mortar, and specially developed the formula and processing technology for producing dry powder mortar by using steel slag. . SUMMARY OF THE INVENTION The object of the present invention is to provide a steel slag dry mortar and a processing technique thereof, so as to fully utilize steel slag, turn waste into treasure, and reduce the cost of mortar.
为了达成上述目的, 本发明的解决方案是- 钢渣干粉砂桨主要由下列物质按重量百分比配制而成: 钢渣砂 60-75%, 水泥和粉煤灰 25- 40%, 水泥和粉煤灰的比例为 2: 3。  In order to achieve the above object, the solution of the present invention is that the steel slag dry silt is mainly prepared by weighting the following materials: steel slag 60-75%, cement and fly ash 25-40%, cement and fly ash The ratio is 2: 3.
上述钢渣干粉砂浆的配料中还配有辅助剂,辅助剂的重量百分比 0-0. 1%。  The 5% by weight of the auxiliary agent is 0. 1% by weight.
上述辅助剂选用减水剂。  The above auxiliary agent is selected from a water reducing agent.
上述辅助剂选用丙烯酸、 纤维素、 增稠剂按任意比混合。 上述辅助剂选用可再分解乳胶粉。 The above auxiliary agent is selected by mixing acrylic acid, cellulose and thickener in any ratio. The above auxiliary agent is selected from the re-decomposable latex powder.
上述水泥可选用三合一水泥粉,三合一水泥按重量百分比由钢渣 The above cement can be selected from three-in-one cement powder, and the three-in-one cement is composed of steel slag by weight percentage.
60-70%, 炉底渣 10- 15%, 辅料 15- 30%制成。 60-70%, bottom slag 10- 15%, accessories 15- 30%.
上述三合一水泥具体由钢渣 70%, 炉底渣 13%, 辅料 17%制成。 上述炉底渣可选用粉煤灰代替。  The above three-in-one cement is specifically made of 70% steel slag, 13% bottom slag, and 17% auxiliary material. The above bottom slag may be replaced by fly ash.
上述辅料为煤矸石 60-70%、 石膏 5-15%、 熟料 15- 25%的重量百 分比混合物。  The above auxiliary materials are a mixture of 60-70% of coal gangue, 5-15% of gypsum, and 15-25% of clinker.
上述辅料具体选用煤矸石 70%、 石膏 10%、 熟料 20%混合为佳。 钢渣干粉砂浆的加工工艺是: 先将钢渣烘干至含水量 0. 5%以下, 并制成颗粒直径为 2. 5mm以下的钢渣砂粒; 再按钢渣砂 60-75%, 水 泥和粉煤灰 25-40%, 水泥和粉煤灰的比例为 2: 3的配比进行配料; 然后, 进行脉冲均质混合至均匀度为 CV<0. 3%; 最后包装, 即为成品 钢渣干粉砂浆。  The above auxiliary materials are preferably selected from the group consisting of 70% coal gangue, 10% gypsum, and 20% clinker. The steel slag dry mortar is processed by the following method: first, the steel slag is dried to a water content of 0.5% or less, and is made into a steel slag grit having a particle diameter of 2. 5 mm or less; and then according to a steel slag, 60-75%, cement and fly ash. 25-40%, the proportion of cement and fly ash is 2:3 ratio; then, pulse homogenization is mixed until the uniformity is CV<0.3%; the final packaging is the finished steel slag dry mortar.
三合一水泥的加工工艺是: 先将钢渣、炉底渣、辅料分别烘干至 含水量 2-3%; 接着, 分别进行粗磨至颗粒直径为 5mm以下; 再按钢 渣 60-70%、 炉底渣 10-15%、 辅料 15- 30%的比例进行配料, 并进行细 磨至比表面积为 450m2/Kg 以上; 最后, 进行脉冲均质混合至均勾度 为 CV<0. 3%, 即为成品三合一水泥。 The processing technology of three-in-one cement is: firstly, the steel slag, the bottom slag and the auxiliary materials are respectively dried to a water content of 2-3%; then, the coarse grinding is respectively performed until the particle diameter is 5 mm or less; and then the steel slag is 60-70%, 3%。 The furnace bottom slag 10-15%, the proportion of the auxiliary material 15-30%, and the fine-grained to a specific surface area of 450m 2 / Kg or more; Finally, pulse homogenization mixed to a uniformity of CV <0. 3% , that is, the finished three-in-one cement.
采用上述配方及加工工艺后,本发明具有传统干粉砂浆的全部性 能, 完全可替代传统干粉砂浆使用, 其耐久性、抗冻融和粘结强度好 于传统干粉砂浆;本发明掺入钢渣达 60%以上,该技术系国内外仅有, 成本低, 产品直接成本仅为传统干粉砂浆产品的 50%; 本发明充分利 用了钢渣, 变废为宝, 特别是选用三合一水泥作为胶结剂, 使资源形 成再生循环使用, 彻底解决了炼钢厂工业废弃物的污染问题。 附图说明 图 1是本发明的加工工艺流程方框图;  After adopting the above formula and processing technology, the invention has the full performance of the traditional dry mortar, and can completely replace the traditional dry mortar, and the durability, freeze-thaw resistance and bonding strength are better than the traditional dry mortar; the invention is incorporated into the steel slag up to 60 More than %, the technology is only at home and abroad, the cost is low, and the direct cost of the product is only 50% of the traditional dry mortar product; the invention fully utilizes the steel slag and turns waste into treasure, especially the three-in-one cement is used as the cementing agent. The recycling of resources is used to completely solve the pollution problem of industrial waste in steelworks. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a process flow of the present invention;
图 2是本发明选用的三合一水泥的加工工艺流程方框图。 具体实施方式 本发明所涉及的钢渣干粉砂浆是按重量百分比主要钢渣砂 60 - 75%、 水泥和粉煤灰 25- 40%制成, 水泥和粉煤灰的比例为 2: 3。  2 is a block diagram showing the processing flow of the three-in-one cement selected by the present invention. BEST MODE FOR CARRYING OUT THE INVENTION The steel slag dry mortar according to the present invention is made up of 60-75% by weight of major steel slag sand, 25-40% of cement and fly ash, and the ratio of cement to fly ash is 2:3.
钢渣砂在整个配方中起骨料作用,随着钢渣砂配比量的增加会使 干粉砂浆的产品成本降低但稠度、分层度和强度也降低,钢渣砂减少 会使产品成本升高但稠度、分层度和强度也高。水泥和粉煤灰在整个 配方中起胶结作用,随着水泥和粉煤灰配比量的增加会使产品成本升 高但稠度、分层度和强度也高,水泥和粉煤灰减少会使产品成本降低 但稠度、分层度和强度也降低。辅助剂在整个配方中起功能性调节作 用, 钢渣干粉砂浆的配料中还可配有重量百分比为 0-0. 1%的辅助剂, 辅助剂可选用减水剂, 也可选用丙烯酸、纤维素、增稠剂按任意比混 合, 或选用可再分解乳胶粉(高分子聚合物)。 Steel slag sand plays an aggregate role in the whole formula. As the proportion of steel slag sand increases, the product cost of dry mortar will decrease, but the consistency, stratification and strength will also decrease. The reduction of steel slag will increase the cost of the product but the consistency. , stratification and strength are also high. Cement and fly ash play a role in the entire formulation, and as the ratio of cement and fly ash increases, the cost of the product rises. High but high consistency, stratification and strength, reduced cement and fly ash will reduce product cost but decrease consistency, stratification and strength. The auxiliary agent plays a functional adjustment role in the whole formulation, and the steel slag dry mortar slurry may be further provided with a 0% by weight of an auxiliary agent, an auxiliary agent for a water reducing agent, or an acrylic acid or cellulose. The thickener is mixed at any ratio, or a re-decomposable latex powder (polymer) is used.
钢渣干粉砂浆的加工工艺如图 1所示:  The processing technology of steel slag dry mortar is shown in Figure 1:
先通过烘干系统将钢渣烘干至含水量 0. 5%。 烘干系统在生产品 工艺流程中主要是对产品所需的物料进行烘干,以达到物料的含水率 在 3%以内, 保障了生产工艺中规定的技术指标。  5%。 The steel slag was dried to a moisture content of 0.5%. The drying system mainly processes the materials required for the product in the raw product process to achieve the moisture content of the material within 3%, which guarantees the technical specifications specified in the production process.
并将烘干后的钢渣制成颗粒直径为 2. 5mm以下的干钢渣砂粒。具 体加工时可以先将烘干的钢渣通过筛分系统筛分, 颗粒直径为 2. 5mm 以下的钢渣砂直接筛出备用,颗粒直径为 2. 5mm以上的钢渣砂则进入 制砂系统制成颗粒直径为 2. 5mm以下的干砂粒。钢渣干粉砂浆的骨料 为砂,本发明正是将钢渣烘干制成砂粒代替河砂, 以具有更佳的产品 性能, 并降低成本。  The dried steel slag is made into dry steel slag sand having a particle diameter of 2. 5 mm or less. The steel slag of the particle diameter of 2. 5mm or less is directly sifted out for use, and the steel slag sand having a particle diameter of 2. 5mm or more enters the sand making system to form granules. Dry sand with a diameter of 2. 5 mm or less. The aggregate of the steel slag dry mortar is sand. In the present invention, the steel slag is dried into sand to replace the river sand to have better product performance and reduce cost.
再在配料系统中按钢渣砂 60- 75%, 水泥和粉煤灰 25- 40%, 水泥 和粉煤灰的比例为 2: 3的配比进行配料。  In the batching system, 60-75% of steel slag, 25-40% of cement and fly ash, and a ratio of cement to fly ash of 2:3 are used for compounding.
然后, 在脉冲混合均质系统中进行脉冲均质混合, 至均匀度为 CV<0. 3%, 使产品达到不分层、 不离析、 均质化。  Then, the pulse homogenization is performed in the pulse mixing homogenization system until the uniformity is CV<0.3%, so that the product is not stratified, non-segregated, and homogenized.
最后, 由气力输送系统输出, 根据需要进入包装系统包装成袋, 或散装进入物料系统。  Finally, it is output by the pneumatic conveying system, packaged into bags in the packaging system as needed, or bulked into the material system.
其中, 本发明所用的水泥可选用普通水泥也可选用三合一水泥 粉。 三合一水泥粉由钢渣 60-70%、 炉底渣 (也可用粉煤灰代替, 此 为等同物) 10-15%、 辅料 15- 30%制成。 辅料可以是煤矸石 60-70%、 石膏 5-15%、 熟料 15- 25%的混合物, 尤以煤矸石 70%、 石膏 10%、 熟 料 20%混合为佳。 配方中还可根据钢渣的品质适当加入添加剂, 添加 剂由硫酸铝、 乙二醇、 固化剂、 丙烯酸、胺混合而成, 使制成的水泥 达到国标 PC32. 5水泥标准, 且质量更佳。  Among them, the cement used in the present invention may be selected from ordinary cement or 3-in-1 cement powder. The three-in-one cement powder is made of 60-70% steel slag, bottom slag (which can also be replaced by fly ash, which is equivalent) 10-15%, and auxiliary materials 15- 30%. The excipient may be a mixture of 60-70% coal gangue, 5-15% gypsum, and 15-25% clinker, especially 70% coal gangue, 10% gypsum, and 20% clinker. The formula can also be added with additives according to the quality of the steel slag. The additive is made of aluminum sulfate, ethylene glycol, curing agent, acrylic acid and amine, so that the finished cement can reach the national standard PC32. 5 cement standard and the quality is better.
钢渣是用于代替原来水泥加工过程中的半成品——熟料,当钢渣 磨细至比表面积为 450m2/Kg 以上时, 在整个配方中起活化作用, 随 着钢渣配比量的增加会使三合一水泥产品的成本降低但安定性差,而 钢渣减少会使产品成本升高但安定性佳。炉底渣(或粉煤灰)和辅料 在整个配方中起与钢渣中和、在化学特性上互补的作用, 随着炉底渣 (或粉煤灰)和辅料配比量的增加会使三合一水泥产品成本高、安定 性佳但强度差,炉底渣(或粉煤灰)和辅料减少则会使产品成本降低、 安定性差但强度佳。 因此, 三合一水泥具体配方选择钢渣 70%, 炉底 渣 13%, 辅料 17%为较佳。 Steel slag is used to replace the semi-finished product in the original cement processing process - clinker. When the steel slag is ground to a specific surface area of 450 m 2 /Kg or more, it will activate in the whole formula, and the amount of steel slag will increase. The cost of three-in-one cement products is reduced but the stability is poor, while the reduction of steel slag will increase the cost of the product but the stability is good. The bottom slag (or fly ash) and auxiliary materials play a role in neutralizing the steel slag and complementing the chemical properties throughout the formulation. As the proportion of the bottom slag (or fly ash) and auxiliary materials increases, the three The cost of a cement product is high, the stability is good, but the strength is poor. The reduction of bottom slag (or fly ash) and auxiliary materials will reduce the cost of the product, and the stability is poor but the strength is good. Therefore, the specific formula of the three-in-one cement is 70% steel slag, 13% bottom slag, and 17% excipients.
三合一水泥的加工工艺如图 2所示: 先通过烘干系统将钢渣、 炉底渣、 辅料分别烘干至含水量 2-3%。 烘干系统在生产品工艺流程中主要是对产品所需的物料进行烘干,以 达到物料的含水率在 3%以内, 保障了生产工艺中规定的技术指标。 接着, 通过粗磨系统分别将烘干后的物料进行粗磨, 至颗粒直径为 5mm 以下, 为下道工艺做好前期的预处理。 再在配料系统中按钢渣 60-70%、 炉底渣 10-15%、 辅料 15- 30%的比例进行配料。 配料系统是 全部生产工艺流程中的重中之重, 准确的配料才能保证产品的质量, 所以该系统在工艺流程中的大料配料计量精度达到小于 0. 5%的精度, 小料配料计量精度达到小于 0. 2%的精度。 并通过粉磨系统, 将配好 的物料进行细磨,该系统釆用相向旋转超重力粉磨工艺,在其物理力 学、 化学及瞬间超高温等作用的激发下, 磨粉细度达到比表面积为 450m2/Kg以上, 使物料的各种性能产生变化, 达到国标 PC32. 5水泥 标准。然后, 在脉冲混合均质系统中进行脉冲均质混合, 由于钢渣三 合一水泥的配料较复杂, 它由多种材料和成份组成, 为使其成份充分 特用该脉冲混合系统。经上述粉磨后的细磨, 再经该系统混合均质至 均勾度为 CV<0. 3%, 才能达到最终产品的质量要求。 最后, 经气力输 送系统, 根据需要进入包装系统, 包装成袋装三合一水泥, 或散装三 合一水泥进入物料系统。 The processing technology of three-in-one cement is shown in Figure 2: The steel slag, the bottom slag and the auxiliary materials are respectively dried to a water content of 2-3% by a drying system. The drying system mainly processes the materials required for the product in the raw product process to achieve the moisture content of the material within 3%, which guarantees the technical indicators specified in the production process. Then, the dried material is coarsely ground by a coarse grinding system to a particle diameter of 5 mm or less, and the pre-treatment is performed for the next process. In the batching system, the proportion is 60-70% of steel slag, 10-15% of bottom slag, and 15-30% of auxiliary materials. The batching system is the most important in the whole production process, and the accurate ingredients can ensure the quality of the product. Therefore, the measurement accuracy of the bulk material in the process is less than 0.5% precision, the measurement accuracy of the small material batching 2%的精度。 Achieved less than 0.2% accuracy. And through the grinding system, the prepared materials are finely ground. The system uses a counter-rotating super-gravity grinding process, and the grinding fineness reaches the specific surface area under the action of physical mechanics, chemistry and instantaneous ultra-high temperature. For the above 450m 2 /Kg, the various properties of the material are changed to meet the national standard PC32. 5 cement standard. Then, pulse homogenization is carried out in a pulse mixing homogenization system. Since the composition of the steel slag three-in-one cement is complicated, it is composed of a plurality of materials and components, and the pulse mixing system is fully utilized for its components. After the fine grinding after the above grinding, and then homogenizing by the system to a uniform hook degree of CV <0.3%, the quality requirement of the final product can be achieved. Finally, through the pneumatic conveying system, enter the packaging system as needed, packaged into three-in-one bagged cement, or bulk three-in-one cement into the material system.

Claims

权 利 要 求 Rights request
1、 钢渣干粉砂浆, 其特征在于主要由下列物质按重量百分比配 制而成: 钢渣砂 60-75%, 水泥和粉煤灰 25- 40%, 水泥和粉煤灰的比 例为 2: 3。 1. Steel slag dry mortar, which is mainly composed of the following materials in weight percentage: 60-75% steel slag, 25-40% cement and fly ash, and 2:3 cement and fly ash.
2、 如权利要求 1所述的钢渣干粉砂浆, 其特征在于: 钢渣干粉 砂浆的配料中还配有辅助剂, 辅助剂的重量百分比 0-0. 1%。  2%。 The steel slag dry mortar, characterized in: the steel slag dry powder mortar is also provided with an auxiliary agent, the weight percentage of the adjuvant 0-0. 1%.
3、 如权利要求 2所述的钢渣干粉砂桨, 其特征在于: 辅助剂选 用减水剂或可再分解乳胶粉。  The steel slag dry silt paddle according to claim 2, wherein the auxiliary agent is a water reducing agent or a re-decomposable latex powder.
4、 如权利要求 2所述的钢渣干粉砂浆, 其特征在于: 辅助剂选 用丙烯酸、 纤维素、 增稠剂的混合物。  The steel slag dry mortar according to claim 2, wherein the auxiliary agent is a mixture of acrylic acid, cellulose, and a thickener.
5、 如权利要求 1所述的钢渣干粉砂浆, 其特征在于: 水泥选用 三合一水泥粉, 三合一水泥按重量百分比由钢渣 60-70%, 炉底渣 5. The steel slag dry mortar according to claim 1, wherein: the cement is selected from three-in-one cement powder, and the three-in-one cement is 60-70% by weight of steel slag, and the bottom slag is used.
10-15%, 辅料 15- 30%制成。 10-15%, excipients 15- 30%.
6、 如权利要求 5所述的钢渣干粉砂浆, 其特征在于: 三合一水 泥具体由钢渣 70°/。, 炉底渣 13%, 辅料 17%制成。  The steel slag dry mortar according to claim 5, wherein the three-in-one cement is specifically made of steel slag 70°/. , the bottom of the slag is 13%, and the auxiliary material is made of 17%.
7、 如权利要求 5所述的钢渣干粉砂浆, 其特征在于: 辅料为煤 矸石 60-70%、 石膏 5-15%、 熟料 15-25%的混合物。  The steel slag dry mortar according to claim 5, wherein the auxiliary material is a mixture of 60-70% of coal gangue, 5-15% of gypsum, and 15-25% of clinker.
8、 如权利要求 7所述的钢渣干粉砂浆, 其特征在于: 辅料具体 选用煤矸石 70%、 石膏 10%、 熟料 20%混合为佳。  The steel slag dry mortar according to claim 7, wherein the auxiliary material is preferably 70% coal gangue, 10% gypsum, and 20% clinker.
9、 如权利要求 1所述钢渣干粉砂浆的加工工艺, 其特征在于- 先将钢渣烘干至含水量 0. 5%以下, 并制成颗粒直径为 2. 5mm以下的 钢渣砂粒; 再按钢渣砂 60-75%, 水泥和粉煤灰 25- 40%, 水泥和粉煤 灰的比例为 2: 3的配比进行配料; 然后, 进行脉冲均质混合至均匀 度为 CV<0. 3%; 最后包装, 即为成品钢渣干粉砂浆。  The steel slag sand particles having a particle diameter of 2. 5 mm or less; and then according to the steel slag, the steel slag is dried to a water content of 0.5% or less; The ash is 60%, the cement and the fly ash are 25-40%, and the ratio of the cement to the fly ash is 2:3. The final packaging is the finished steel slag dry mortar.
10、如权利要求 5所述三合一水泥的加工工艺, 其特征在于: 先 将钢渣、 炉底渣、 辅料分别烘干至含水量 2-3%; 接着, 分别进行粗 磨至颗粒直径为 5ran以下; 再按钢渣 60-70%、 炉底渣 10-15%、 辅料 15- 30%的比例进行配料, 并进行细磨至比表面积为 450m7Kg 以上; 最后,进行脉冲均质混合至均匀度为 CV<0. 3%,即为成品三合一水泥。  10 . The processing technology of the three-in-one cement according to claim 5 , wherein: the steel slag, the bottom slag and the auxiliary materials are respectively dried to a water content of 2-3%; and then, respectively, coarsely pulverized to a particle diameter of 5ran or less; further according to the ratio of 60-70% steel slag, 10-15% bottom slag, 15-30% of auxiliary materials, and finely ground to a specific surface area of 450m7Kg or more; finally, pulse homogenization to uniformity For CV<0.3%, it is the finished three-in-one cement.
PCT/CN2007/001557 2007-05-14 2007-05-14 Dry powder mortar made from steel slag and a method for producing it WO2008138170A1 (en)

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN102060479A (en) * 2009-11-16 2011-05-18 中冶建筑研究总院有限公司 Ultrahigh-strength wear-resisting plate with cement base and production method thereof
CN103755191A (en) * 2013-10-29 2014-04-30 江苏名和集团有限公司 Mineral admixture with low water demand and preparation method thereof
CN104003667A (en) * 2014-06-03 2014-08-27 上海宝冶钢渣综合开发实业有限公司 Hollow concrete partition wall plate and production method thereof
CN107686295A (en) * 2017-09-30 2018-02-13 翟孝东 A kind of dry-mixed mortar production method
CN109678368A (en) * 2019-01-24 2019-04-26 武汉理工大学 A kind of slag as aggregate production method
CN111233413A (en) * 2020-01-15 2020-06-05 安徽工业大学 High-expansion-energy steel slag concrete and preparation method thereof

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CN1955136A (en) * 2005-10-25 2007-05-02 王建伟 Three-in-one cement and its processing technology
CN1995140A (en) * 2005-12-28 2007-07-11 北京市天山新材料技术公司 Single component silane modified polyether seal glue and its preparation method

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CN1955136A (en) * 2005-10-25 2007-05-02 王建伟 Three-in-one cement and its processing technology
CN1995140A (en) * 2005-12-28 2007-07-11 北京市天山新材料技术公司 Single component silane modified polyether seal glue and its preparation method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102060479A (en) * 2009-11-16 2011-05-18 中冶建筑研究总院有限公司 Ultrahigh-strength wear-resisting plate with cement base and production method thereof
CN103755191A (en) * 2013-10-29 2014-04-30 江苏名和集团有限公司 Mineral admixture with low water demand and preparation method thereof
CN104003667A (en) * 2014-06-03 2014-08-27 上海宝冶钢渣综合开发实业有限公司 Hollow concrete partition wall plate and production method thereof
CN107686295A (en) * 2017-09-30 2018-02-13 翟孝东 A kind of dry-mixed mortar production method
CN109678368A (en) * 2019-01-24 2019-04-26 武汉理工大学 A kind of slag as aggregate production method
CN111233413A (en) * 2020-01-15 2020-06-05 安徽工业大学 High-expansion-energy steel slag concrete and preparation method thereof

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