CN106186959A - 一种再生微粉砂浆及其制备方法 - Google Patents
一种再生微粉砂浆及其制备方法 Download PDFInfo
- Publication number
- CN106186959A CN106186959A CN201610575100.6A CN201610575100A CN106186959A CN 106186959 A CN106186959 A CN 106186959A CN 201610575100 A CN201610575100 A CN 201610575100A CN 106186959 A CN106186959 A CN 106186959A
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- micro powder
- regenerative micro
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- cement
- powder
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- 239000000843 powder Substances 0.000 title claims abstract description 96
- 230000001172 regenerating Effects 0.000 title claims abstract description 74
- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000004568 cement Substances 0.000 claims abstract description 47
- 238000010276 construction Methods 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 239000011505 plaster Substances 0.000 claims abstract description 13
- 239000001110 calcium chloride Substances 0.000 claims abstract description 12
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims description 20
- 238000000227 grinding Methods 0.000 claims description 11
- 230000008929 regeneration Effects 0.000 claims description 9
- 238000011069 regeneration method Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound 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[O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 239000006071 cream Substances 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 claims 1
- 230000003009 desulfurizing Effects 0.000 claims 1
- 235000013312 flour Nutrition 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000011780 sodium chloride Substances 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 239000011449 brick Substances 0.000 description 3
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- 230000000694 effects Effects 0.000 description 2
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- 230000002742 anti-folding Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 239000011083 cement mortar Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions 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
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/246—Cements from oil shales, residues or waste other than slag from waste building materials, e.g. waste asbestos-cement products, demolition waste
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
本发明公开了一种再生微粉砂浆及其制备方法。本发明所述再生微粉砂浆由以下重量份的各组分组成：水泥3~15份、再生微粉水泥混合材1~10份、再生微粉2~8份、粉煤灰3~10份、再生细骨料27~130份、水4~22份，所述的再生微粉水泥混合材由以下质量比的各组分组成:活性建筑垃圾粉：CaCl2：脱硫石膏：水泥熟料为2~8：0.21~2.1：0.1~1：15~21。本发明一种再生微粉砂浆及其制备方法具有以下有益效果：减少水泥用量，降低成本，利用节约资源，保护环境。
Description
技术领域
[0001] 本发明涉及建筑材料领域，特别是一种再生微粉砂浆及其制备方法。
背景技术
[0002] 随着我国城市改扩建规模的不断加大以及社会主义新农村建设的快速推进，大量 旧建筑物和构筑物的拆除产生了大量的混凝土、砖、石、砂浆和瓦块等建筑废弃物。据住建 部预计，到2020年中国还将新建住宅300亿平方米，由此产生的建筑废弃物至少达到50亿 吨。目前，建筑废弃物大部分采用传统方式处置，不仅占用大量土地，而且还会对环境和人 身安全造成很大危害。随着经济的快速发展，砂石等建筑材料消耗量巨大，环境压力巨大； 另一方面垃圾围城已经变成一个迫切需要解决的问题。建筑垃圾占城市垃圾总量的30%~ 40%，我国每年的建筑垃圾产生量约20亿吨，大多填埋或堆存处置，资源化率不足5%。我国各 地的建筑垃圾组分不同，但主要都是建筑余泥以及废弃混凝土、砂浆、砖瓦等。将废混凝土、 砂浆和砖瓦制备成再生骨料不仅能有效缓解砂石短缺的问题，并能有效减少建筑垃圾的排 放。目前，废弃混凝土制备再生骨料的主要方式是同时制备再生粗骨料和再生细骨料。由于 再生骨料中存在大量硬化水泥砂浆，简单破碎的再生粗骨料和再生细骨料粒形差、密度小、 吸水率高，以其制备的再生混凝土和再生砂浆的性能不良。为进一步提高再生细骨料的性 能，提高其利用率，因此急需解决再生粗骨料和再生细骨料粒形差、密度小、吸水率高的问 题。
发明内容
[0003] 本发明的目的在于克服上述现有背景技术的不足，提供一种再生微粉砂浆及其制 备方法，本发明还提供这种再生微粉砂浆的制备方法，其简便可行。
[0004] 本发明的目的是通过以下技术方案实现的： 一种再生微粉砂浆，其特征在于，由以下重量份的各组分组成:水泥3~15份、再生微粉 水泥混合材卜10份、再生微粉2~8份、粉煤灰3~10份、再生细骨料27~130份、水4~22份，所述 的再生微粉水泥混合材由以下质量比的各组分组成：活性建筑垃圾粉:CaCl 2:脱硫石膏： 水泥熟料为2~8:0 · 21~2 · 1:0 · 1~1:15~21。
[0005] 优选的，所述再生微粉砂浆由以下重量份的各组分组成:水泥5~10份、再生微粉水 泥混合材4~8份、再生微粉3~6份、粉煤灰5~8份、再生细骨料33~90份、水5~15份，所述的再生 微粉水泥混合材由以下质量比的各组分组成：活性建筑垃圾粉:CaCl 2:脱硫石膏：水泥熟 料为 3~6:0.5~1.8:0.4~1:18~21。
[0006] 优选的，所述再生微粉水泥混合材由以下质量比的各组分组成:活性建筑垃圾粉： CaCl2:脱硫石霄:水泥熟料为4:1.5:1:21。
[0007] 优选的，所述水泥为P.0 42.5普通娃酸盐水泥、娃酸盐PI或PII水泥中的一种或多 种。
[0008] 优选的，所述再生微粉为建筑垃圾破碎粉磨至粒径<80μπι。
[0009] 优选的，所述活性建筑垃圾粉是将建筑垃圾破碎为<30mm颗粒，在400°C预处理3h 后球磨4h，再置于600 °C煅烧2h，0.5h升温到900 °C，保温2h，在0.5h冷却到室温后得到。
[0010] 优选的，所述再生细骨料为建筑垃圾破碎粉磨至细度模数为2.3~3.0。
[0011] 本发明还提供所述再生微粉砂浆的制备方法，包括如下步骤： 1) 活性建筑垃圾粉的制备：将建筑垃圾破碎为<30mm颗粒，在400 °C预处理3h后球磨 4h，再置于600°C煅烧2h，0.5h升温到900°C，保温2h，在0.5h冷却到室温后得到； 2) 再生微粉水泥混合材的制备：由步骤1)得到的活性建筑垃圾粉及CaCl2、脱硫石膏、 水泥熟料按照质量比4:1.5:1:21研磨混合而成； 3 )再生微粉的制备:将建筑垃圾破碎粉磨至粒径< 80μπι; 4) 再生细骨料的制备:将建筑垃圾粉破碎粉磨至细度模数为2.3~3.0，再将得到的再生 细骨料浸水处理，获得饱和面干的骨料； 5) 混合:将制备得到的再生微粉水泥混合材、再生微粉和再生细骨料与水泥、粉煤灰、 水混匀，即获得所述再生微粉砂浆。
[0012] 与现有技术相比，本发明的有益效果在于:本发明减少水泥用量，降低成本，利用 节约资源，保护环境。
具体实施方式
[0013] 为了更好地理解本发明，下面结合实施例进一步阐明本发明的内容，但本发明的 内容不仅仅局限于下面的实施例。
[0014] 实施例1 本实施例提供一种再生微粉砂浆，由以下重量份的各组分组成:水泥10份、再生微粉水 泥混合材4份、再生微粉3份、粉煤灰5份、再生细骨料90份、水15份。具体地，所述再生微粉水 泥混合材由以下质量比的各组分组成：活性建筑垃圾粉：CaCl 2:脱硫石膏：水泥熟料为4: 1.5:1:21;所述再生微粉为建筑垃圾破碎粉磨至粒径小于80μπι;所述再生细骨料为建筑垃 圾破碎粉磨至细度模数为2.3~3.0。
[0015] 上述再生微粉砂浆的制备方法，包括如下步骤： 1) 活性建筑垃圾粉的制备:将建筑垃圾破碎为小于30mm颗粒，300°C预处理2h后球磨 4h，再置于600°C煅烧2h，lh升温到900°C，保温2h，lh冷却到室温后得到，； 2) 再生微粉水泥混合材的制备：由步骤1)得到的活性建筑垃圾粉及CaCl2、脱硫石膏、 水泥熟料按照质量比4:1.5:1:21研磨混合而成； 3) 再生微粉的制备:将建筑垃圾破碎粉磨至粒度小于80μπι; 4) 再生细骨料的制备:将建筑垃圾粉破碎粉磨至细度模数为2.3~3.0，再将得到的再生 细骨料浸水处理，获得饱和面干的骨料； 5) 混合:将制备得到的再生微粉水泥混合材、再生微粉和再生细骨料与水泥、粉煤灰、 水混匀，即获得所述再生微粉砂浆。
[0016] 实施例2 本实施例提供一种再生微粉砂浆，由以下重量份的各组分组成:水泥5份、再生微粉水 泥混合材8份、再生微粉6份、粉煤灰8份、再生细骨料33份、7Κ5份。其他组分要求以及制备方 法与实施例1基本相同。
[0017]不同之处在于：步骤2)所述活性建筑垃圾粉及CaCl2、脱硫石膏、水泥熟料按照质 量比7:2:0.3:16研磨混合而成。
[0018] 实施例3 本实施例提供一种再生微粉砂浆，由以下重量份的各组分组成:水泥15份、再生微粉水 泥混合材1份、再生微粉8份、粉煤灰10份、再生细骨料130份、水4份。其他组分要求以及制备 方法与实施例1基本相同。
[0019] 不同之处在于：S2所述活性建筑垃圾粉及CaCl2、脱硫石膏、水泥熟料按照质量比 2:0.5:0.5:18研磨混合而成。
[0020] 实施例4 本实施例提供一种再生微粉砂浆，由以下重量份的各组分组成:水泥3份、再生微粉水 泥混合材10份、再生微粉2份、粉煤灰3份、再生细骨料27份、水22份。其他组分要求以及制备 方法与实施例1基本相同。
[0021] 不同之处在于：S2所述活性建筑垃圾粉及CaCl2、脱硫石膏、水泥熟料按照质量比 2:0.5:0.5:18研磨混合而成。
[0022] 对比例1 本对比例1与实施例1提供的再生微粉砂浆基本相同，不同之处在于，所述再生细骨料 用机制砂替换，且无再生微粉水泥混合材和再生微粉，其他组分含量(水泥、粉煤灰和水)及 制备方法与实施例1相同。
[0023] 对比例2 本对比例2与实施例1提供的再生微粉砂浆基本相同，不同之处在于，由以下重量份的 各组分组成:水泥20份、再生微粉水泥混合材15份、再生微粉10份、粉煤灰5份、再生细骨料 150份、水25份。
[0024] 以砂浆试件为考察对象，按照实施例1~3与对比例1~2均进行抗折抗压强度测试。 用万能压力试验机测试对比例和实施例的28天抗折、抗压强度； 经常规测试，所述实施例及对比例形成的砂浆的各项指标见表1。
[0025] 表1再生微粉砂浆的性能
从表1可以看出，本发明的实施例制备砂浆力学性能较对比例有更优作用，并能够满足 国家标准指标。
[0026]以上对本发明创造实施所提供的一种所述一种再生微粉砂浆及其制备方法进行 了详细的介绍，对于本领域的一般技术人员，依据本发明创造实施例的思想，在具体实施方 式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明创造的限 制。
Claims (8)
1. 一种再生微粉砂浆，其特征在于，由以下重量份的各组分组成：水泥3~15份、再生微 粉水泥混合材1~10份、再生微粉2~8份、粉煤灰3~10份、再生细骨料27~130份、水4~22份，所 述的再生微粉水泥混合材由以下质量比的各组分组成：活性建筑垃圾粉:CaCl 2:脱硫石 膏:水泥熟料为2~8:0 • 21~2 • 1:0 • 1~1:15~21。
2. 根据权利要求1所述的一种再生微粉砂浆，其特征在于，由以下重量份的各组分组 成:水泥5~10份、再生微粉水泥混合材4~8份、再生微粉3~6份、粉煤灰5~8份、再生细骨料33~ 90份、水5~15份，所述的再生微粉水泥混合材由以下质量比的各组分组成：活性建筑垃圾 粉:CaCl 2:脱硫石膏:水泥熟料为3~6:0 • 5~1 • 8:0 • 4~1:18~21。
3. 根据权利要求1所述的一种再生微粉砂浆，其特征在于，所述再生微粉水泥混合材由 以下质量比的各组分组成:活性建筑垃圾粉:CaCl 2:脱硫石膏:水泥熟料为4:1.5:1:21。
4. 根据权利要求1所述的一种再生微粉砂浆，其特征在于，所述水泥为P. 0 42.5普通硅 酸盐水泥、硅酸盐PI或PII水泥中的一种或多种。
5. 根据权利要求1所述的一种再生微粉砂浆，其特征在于，所述再生微粉为建筑垃圾破 碎粉磨至粒径< 80M1。
6. 根据权利要求2所述的一种再生微粉砂浆，其特征在于，所述活性建筑垃圾粉是将建 筑垃圾破碎为< 30mm颗粒，在400 °C预处理3h后球磨4h，再置于600 °C煅烧2h，0.5h升温到 900°C，保温2h，在0.5h冷却到室温后得到。
7. 根据权利要求1所述的一种再生微粉砂浆，其特征在于，所述再生细骨料为建筑垃圾 破碎粉磨至细度模数为2.3~3.0。
8. -种权利要求1所述再生微粉砂浆的制备方法，其特征在于，包括如下步骤： 1) 活性建筑垃圾粉的制备：将建筑垃圾破碎为<30mm颗粒，在400°C预处理3h后球磨 4h，再置于600°C煅烧2h，0.5h升温到900°C，保温2h，在0.5h冷却到室温后得到； 2) 再生微粉水泥混合材的制备：由步骤1)得到的活性建筑垃圾粉及CaCl2、脱硫石膏、水 泥熟料按照质量比4:1.5:1:21研磨混合而成； 3) 再生微粉的制备:将建筑垃圾破碎粉磨至粒径<80mi; 4) 再生细骨料的制备:将建筑垃圾破碎粉磨至细度模数为2.3~3.0，再将得到的再生细 骨料浸水处理，获得饱和面干的骨料； 5) 混合:将制备得到的再生微粉水泥混合材、再生微粉和再生细骨料与水泥、粉煤灰、 水混匀，即获得所述再生微粉砂浆。
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