CN105801026B - 一种地聚物地坪的加工方法 - Google Patents
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Abstract
本发明涉及建材技术领域，旨在提供一种地聚物地坪的加工方法。包括：将细砂、碎石、粉煤灰，以及高炉矿渣或煅烧粘土，加入混合搅拌机中，分散得到干原料；将工业水玻璃，或烧碱与水加入至干原料中搅拌混匀至呈成泥浆状；进行地面浇筑，震动平整、提浆、收光成型；早期养护期间通过浇水避免表面干燥发白；养护到期后，水磨平整磨光，清洁干燥后喷洒油性渗透固化剂；固化剂表干后以树脂磨片抛光，保持表面清洁干燥，再养护7天，得到地聚物地坪。本发明能有效防止泛碱现象的产生，扩展了地聚物地坪的适用范围。生产工艺简单、无毒无害；制得的地聚物地坪具备高强耐磨、高光泽度、不容易起灰起砂，养护时间短等特点，有优秀的装饰应用效果。
Description
技术领域
本发明属于结构和建筑领域，具体涉及地聚物地坪的加工方法。
背景技术
具有碱激发活性的偏高岭土、煅烧粘土、高炉矿渣等矿物在强碱或者碱性聚硅酸盐，如水玻璃等碱性激发剂的存在下通过铝硅酸盐氧化物聚合而形成的高强度Si-O-Al键的三维结构，可作为胶凝材料，代替水泥制造地聚物混凝土。
采用地聚物混凝土作为地坪浇筑材料具有显著的节能环保优势。普遍认为，采用地聚物材料的生产所涉及的总能耗仅为水硬性水泥的生产所需能耗的大约1/3。这是因为传统混凝土用到的水泥的生产需要在极高的温度(约1500℃量级)下烧制，而地聚物材料的常用原料如煅烧粘土、偏高岭土仅需要在大约800℃下烧制，而高炉矿渣，只需要粉磨一定细度即可直接使用。
采用地聚物混凝土浇筑地坪工期短，不容易产生收缩裂纹，耐久性好，打磨后可以呈现一定的光泽度，极具市场潜力，目前已经有很多研究报导了多种地聚物混凝土地坪。然而由于地坪中的地聚物水化后硬化浆体中的Si-O-Al三维结构是一种类沸石多孔结构，在地下水位较高的地方许多水溶性盐分可以沿着孔道到达地坪表面，水分蒸发后，盐分就在表面集聚形成泛碱现象，极大影响表面美观以及日常使用。因此，许多地聚物混凝土地坪无法用于厂房，展厅，地下车库等对表面性能要求高的场所。本发明通过表面渗透自固化来对地坪表面改性，提高表面密封性，阻止泛碱现象出现，可制作高耐磨，高亮艺术地坪。目前该技术方法仍未见报道。
发明内容
本发明要解决的技术问题是，克服现有技术中的不足，提供一种地聚物地坪的加工方法。
为解决技术问题，本发明的解决方案是：
提供一种地聚物地坪的加工方法，包括以下步骤：
(1)按比例称取细砂、碎石、粉煤灰，以及高炉矿渣或煅烧粘土，加入混合搅拌机中，分散15-30分钟，得到混合均匀的干原料；
(2)称取固含量为30％的工业水玻璃，加入至干原料中，搅拌混匀至呈成泥浆状；或者，称取烧碱加入至干原料中，再加入水，搅拌混匀至呈成泥浆状；
(3)以泥浆状混合物进行地面浇筑，震动平整、提浆、收光成型；进行早期养护7天，期间通过浇水避免表面干燥发白；
(4)养护到期后，对地坪表面逐级水磨平整磨光，清洁干燥后，按照0.3kg/m2喷洒油性渗透固化剂；固化剂表干后以树脂磨片抛光，保持表面清洁干燥，再养护7天，得到地聚物地坪；
所用各原料组分均以质量份数计算，其用量关系如下：
细砂，10-20份；碎石，30-40份；质量比例3:1的高炉矿渣与粉煤灰的混合物，30-40份；工业水玻璃10-20份；或者是，
细砂，10-20份；碎石，30-40份；质量比例3:1的煅烧粘土与粉煤灰的混合物，30-40份；烧碱5-10份，水10-15份。
本发明中，所述对地坪表面逐级水磨平整磨光，是指依次使用100目、200目、300目、500目、1000目的树脂磨片对地坪表面逐级水磨平整磨光。
本发明中，所述固化剂表干后的抛光，是指依次使用500目、1000目、2000目的树脂磨片抛光。
本发明中，所述油性渗透固化剂的固化成分是纳米级低聚合度硅氧化合物，是指含有三官能链结或者四官能链结的硅烷预聚物。
本发明中，所述细砂为连续级配的河砂或机制砂。
本发明中，所述碎石为5-25mm级配碎石。
本发明中，所述高炉矿渣为比表面积大于300㎡/kg的细粉。
本发明中，所述煅烧粘土由粘土粉体经过750℃煅烧2小时获得，比表面积大于300㎡/kg。
本发明中，所述粉煤灰为比表面积大于300㎡/kg的细粉。
本发明中，所述工业水玻璃经过甲基硅酸钾复合改性，模数为1.5-2.5。
与现有技术相比，本发明的有益效果在于：
1、本发明通过使用油性渗透固化剂，对地聚物地坪表面孔隙进行密封，有效防止了泛碱现象的产生，扩展了地聚物地坪的适用范围。
2、本发明生产工艺简单、无毒无害；
3、本发明制得的地聚物地坪具备高强耐磨、高光泽度、不容易起灰起砂，养护时间短等特点，有优秀的装饰应用效果。
具体实施方式
下面通过实施例进一步对本发明进行举例说明：
在这些实施例中，使用以下组分原料:
油性渗透固化剂，固化成分是纳米级低聚合度硅烷预聚物，含有三官能链结或者四官能链结。
细砂，连续级配的河砂或机制砂。
碎石，5-25mm级配碎石。
质量比例3:1的高炉矿渣与粉煤灰的混合物，其中，高炉矿渣与粉煤灰细粉表面积大于300㎡/kg。
质量比例3:1的煅烧粘土与粉煤灰的混合物，其中煅烧粘土粉体经过750℃煅烧2小时获得，煅烧粘土与粉煤灰比表面积均大于300㎡/kg。
甲基硅酸钾复合改性工业水玻璃，模数为1.5-2.5。
所用原材料，配比如表1所示，按质量份数计，如下：
表1
加工步骤，说明如下：
(1)按上述比例称取细砂、碎石、粉煤灰，以及高炉矿渣或煅烧粘土，加入混合搅拌机中，分散15-30分钟，得到混合均匀的干原料；
(2)称取固含量为30％的工业水玻璃，加入至干原料中，搅拌混匀至呈成泥浆状；或者，称取烧碱加入至干原料中，再加入水，搅拌混匀至呈成泥浆状；
(3)以泥浆状混合物进行地面浇筑，震动平整、提浆、收光成型；进行早期养护7天，期间通过浇水避免表面干燥发白；
(4)养护到期后，对地坪表面逐级水磨平整磨光，清洁干燥后，按照0.3kg/m2喷洒油性渗透固化剂；固化剂表干后以树脂磨片抛光，保持表面清洁干燥，再养护7天，得到地聚物地坪；
参照CECS328-2012整体地坪工程技术规程测试实施例地聚物地坪回弹强度、莫氏硬度、光泽度，各项结果列于表2：
表2
上述实施例清楚地表明，通过使用硅氧预聚体对所述地聚物地坪渗透固化并打磨后，可以达到较好的强度、莫氏硬度和光泽度，解决了本发明所要解决的技术问题。
Claims (9)
1.一种地聚物地坪的加工方法，其特征在于，其具体步骤如下：
（1）按比例称取细砂、碎石、粉煤灰，以及高炉矿渣或煅烧粘土，加入混合搅拌机中，分散15-30分钟，得到混合均匀的干原料；
（2）称取固含量为30%的工业水玻璃，加入至干原料中，搅拌混匀至呈成泥浆状；或者，称取烧碱加入至干原料中，再加入水，搅拌混匀至呈成泥浆状；
（3）以泥浆状混合物进行地面浇筑，震动平整、提浆、收光成型；进行早期养护7天，期间通过浇水避免表面干燥发白；
（4）养护到期后，对地坪表面逐级水磨平整磨光，清洁干燥后，按照0.3kg/m2喷洒油性渗透固化剂；固化剂表干后以树脂磨片抛光，保持表面清洁干燥，再养护7天，得到地聚物地坪；
所用各原料组分均以质量份数计算，其用量关系如下：
细砂，10-20份；碎石，30-40份；质量比例3:1的高炉矿渣与粉煤灰的混合物，30-40份；工业水玻璃10-20份；或者是，
细砂，10-20份；碎石，30-40份；质量比例3:1的煅烧粘土与粉煤灰的混合物，30-40份；烧碱5-10份，水10-15份；
所述油性渗透固化剂的固化成分为纳米级低聚合度硅氧化合物，是含有三官能链结或者四官能链结的硅烷预聚物。
2.根据权利要求1所述的方法，其特征在于，所述对地坪表面逐级水磨平整磨光，是指依次使用100目、200目、300目、500目、1000目的树脂磨片对地坪表面逐级水磨平整磨光。
3.根据权利要求1所述的方法，其特征在于，所述固化剂表干后的抛光，是指依次使用500目、1000目、2000目的树脂磨片抛光。
4.根据权利要求1至3任意一项中所述的方法，其特征在于，所述细砂为连续级配的河砂或机制砂。
5.根据权利要求1至3任意一项中所述的方法，其特征在于，所述碎石为5-25mm级配碎石。
6.根据权利要求1至3任意一项中所述的方法，其特征在于，所述高炉矿渣为比表面积大于300㎡/kg的细粉。
7.根据权利要求1至3任意一项中所述的方法，其特征在于，所述煅烧粘土由粘土粉体经过750℃煅烧2小时获得，比表面积大于300㎡/kg。
8.根据权利要求1至3任意一项中所述的方法，其特征在于，所述粉煤灰为比表面积大于300㎡/kg的细粉。
9.根据权利要求1至3任意一项中所述的方法，其特征在于，所述工业水玻璃经过甲基硅酸钾复合改性，模数为1.5-2.5。
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