CN101215129A - 一种水泥基建筑外墙复合保温砂浆 - Google Patents
一种水泥基建筑外墙复合保温砂浆 Download PDFInfo
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- CN101215129A CN101215129A CNA2008100187099A CN200810018709A CN101215129A CN 101215129 A CN101215129 A CN 101215129A CN A2008100187099 A CNA2008100187099 A CN A2008100187099A CN 200810018709 A CN200810018709 A CN 200810018709A CN 101215129 A CN101215129 A CN 101215129A
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- 239000004570 mortar (masonry) Substances 0.000 title claims abstract description 23
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Classifications
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- 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
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- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/29—Frost-thaw resistance
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明涉及一种水泥基建筑外墙复合保温砂浆，配比组分采用胶合料、级配聚苯颗粒(EPS)、膨胀珍珠岩、耐碱玻璃纤维和聚丙烯短切纤维、外加剂、粘结剂和水并经过优化试验确定以下最优配比：该砂浆保温性能好，强度高、粘结度强，抗冻、抗裂性能优，操作简单，施工成本低。
Description
(一)技术领域
本发明涉及一种水泥基建筑外墙复合保温砂浆。
(二)背景技术
检索国内外有关资料显示，目前建筑物耗能中通过墙体的室内外热交换耗能约占总耗能的1/3以上，而且建筑耗能过多不仅浪费资源，还间接带来温室效应，可见墙体保温节能的潜力和意义很大。而国内目前墙体保温多采用(挤塑)聚苯板和胶粉聚苯颗粒拌合料，施工工序比较复杂，施工成本也比较高。
(三)发明内容
为了满足目前建筑外墙保温及施工工艺简便的需求，本发明提供一种保温性能好，强度高、粘结度强，抗冻、抗裂性能优，操作简单，施工成本低的建筑外墙保温砂浆。
本发明解决其技术问题所采取的技术方案是：该建筑外墙保温砂浆在配比设计时既考虑到砂浆的保温性能，同时也考虑到砂浆的操作性能、粘结性能、抗裂性能、使用寿命、环保性能等各项性能指数，并参考诸多原材料的各项性能指数，确定了以下一些配比材料：
1、胶结材料采用PO42.5水泥，各项性能指标符合技术规范要求。
2、为了确保砂浆的保温性能，配比设计中采用了保温性能较好的级配聚苯颗粒(EPS)，规格粒径为2～5mm。
3、为了使砂浆的密实度和和易性更好，配比设计中掺入了粒径较小的膨胀珍珠岩，规格粒径为1～2mm。
4、为了改善砂浆的抗裂性能，配比设计中掺入了18mm耐碱玻璃纤维和10～15mm聚丙烯短切纤维。
5、为了保证保温材料聚苯颗粒(EPS)和膨胀珍珠岩颗粒表面与水泥砂浆良好润湿亲合，配比设计中掺入了粘结剂，使粘结剂主链中的非极性链段与保温材料颗粒的非极性表面发生物理吸附，从而聚合物中的极性基团就在保温材料颗粒表面向外定向排列，促使保温材料颗粒由憎水性变成了亲水性。
6、为了提高拌和物的各项性能，配比设计中掺入了自行开发的专用外加剂。
经过各项原材料掺量及拌和物性能的近百组对比试验，确定了工程所需要的最优配比如下：
保温砂浆配合比
| 胶结料 | 聚苯颗粒(EPS)及膨胀珍珠岩 | 外加剂 | 纤维及纤维素 | 粘结剂 | 水 |
| 350 | 50 | 1.9 | 1.31 | 1.43 | 达到稠度6.5 |
(四)技术效果
本发明的有益效果如下：
1、经江苏省建筑工程检测中心检测，保温砂浆各项物理、力学性能指标如下：
保温砂浆的物理性能
| 干容重(kg/m3) | 导热系数(w/m·k) | 蓄热系数w/m2k | 收缩率(％) | 抗冲击能力(0.5kg1m高度) | |||
| 7d | 14d | 21d | 28d | ||||
| 447 | 0.07807 | 3.3 | 0.029 | 0.083 | 0.114 | 0.162 | 5次无裂纹 |
保温砂浆的力学性能
| 28d抗压强度(MPa) | 28d粘剪强度(MPa) | 80d强度(MPa) | 25次冻融 | |||||
| 标养 | 饱水 | 耐高温 | 抗折 | 抗压 | 质量损失(％) | 强度损失(％) | 判定 | |
| 1.1 | 1.5 | 1.5 | 0.6 | 1.1 | 2.2 | +12.5 | -7.3 | 合格 |
2、与目前市场上常用的外墙保温材料的使用效果及经济效益比较如下：
| 序号 | 保温材料类别 | 导热系数(w/m·k) | 材料费用(元/m2) | 施工成本 |
| 1 | 水泥基建筑外墙复合保温砂浆(20mm) | 0.07807 | 15.62 | 中 |
| 2 | 胶粉聚苯颗粒保温砂浆(40mm) | 0.087 | 17 | 中 |
| 3 | 泡沫玻璃陶粒保温砂浆(40mm) | 0.1739 | 15 | 中 |
| 4 | 复合式聚苯乙烯保温板(40mm) | 0.081 | 45 | 高 |
| 5 | 聚氨酯现场喷涂(40mm) | 0.08 | 60 | 高 |
| 6 | 水泥珍珠岩板(120mm) | 0.14 | 32 | 高 |
| 7 | 水泥蛭石块(120mm) | 0.119 | 33.1 | 高 |
(五)具体实施方式
1、施工时，施工现场加水量宜为干料重量的50～55％，稠度控制在60～70mm左右。冬季施工时应掺抗冻剂搅拌使用。
2、搅拌均匀后，宜放置5～10min后再使用，并应在2～3h内用完。
3、施工前墙面干燥度控制在八成干左右，并应根据热工计算确定涂抹厚度，再确定每次抹灰层厚度，每次抹灰层厚度宜控制在6～8mm。
4、施工时适度用力，以保证其粘结强度，待材料达到初凝时方可进行抹光。
Claims (3)
1.一种水泥基建筑外墙复合保温砂浆，其特征在于：采用胶结料、级配聚苯颗粒(EPS)、膨胀珍珠岩、耐碱玻璃纤维和聚丙烯短切纤维、外加剂、粘结剂和水七种组分。
2.根据权利要求1所述的一种水泥基建筑外墙复合保温砂浆，其特征在于：
保温砂浆配合比
3.根据权利要求1所述的一种水泥基建筑外墙复合保温砂浆，其特征在于：胶结料采用PO32.5～PO52.5水泥。
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| CNA2008100187099A CN101215129A (zh) | 2008-01-21 | 2008-01-21 | 一种水泥基建筑外墙复合保温砂浆 |
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| CNA2008100187099A CN101215129A (zh) | 2008-01-21 | 2008-01-21 | 一种水泥基建筑外墙复合保温砂浆 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876502A (zh) * | 2015-04-30 | 2015-09-02 | 安徽鑫润新型材料有限公司 | 一种耐水保温砂浆及其制备方法 |
| CN104876521A (zh) * | 2015-04-30 | 2015-09-02 | 安徽鑫润新型材料有限公司 | 一种抗裂保温砂浆及其制备方法 |
| CN106927745A (zh) * | 2017-01-03 | 2017-07-07 | 湖南科技学院 | 一种聚苯颗粒玄武岩纤维加固保温砂浆、制备及其使用方法 |
| CN108383458A (zh) * | 2018-05-02 | 2018-08-10 | 辛集市金凤凰工贸有限公司 | 一种保温板及其制备方法 |
-
2008
- 2008-01-21 CN CNA2008100187099A patent/CN101215129A/zh active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104876502A (zh) * | 2015-04-30 | 2015-09-02 | 安徽鑫润新型材料有限公司 | 一种耐水保温砂浆及其制备方法 |
| CN104876521A (zh) * | 2015-04-30 | 2015-09-02 | 安徽鑫润新型材料有限公司 | 一种抗裂保温砂浆及其制备方法 |
| CN106927745A (zh) * | 2017-01-03 | 2017-07-07 | 湖南科技学院 | 一种聚苯颗粒玄武岩纤维加固保温砂浆、制备及其使用方法 |
| CN108383458A (zh) * | 2018-05-02 | 2018-08-10 | 辛集市金凤凰工贸有限公司 | 一种保温板及其制备方法 |
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