The invention provides a preparation of wet mixed mortar admixture, which consists of A material and B material, in which the A material is composed of the following weight percentage components: air entraining agent: 1% to 2.5%, retarder: 1% to 3.5%, anti cracking agent: 0.1% to 0.25%, enhancer: 1% to 2.5%, water retention agent: 1% to 1.8%, water for B, and B material Composition of the following weight percentage: water reducing agent: 4% ~ 15%, reducing agent: 0.1% ~ 0.9%, the allowance is water, the amount of water is called according to the weight percentage, and the retarder, water retaining agent and reinforcing agent are added in accordance with the percentage of weight. After mixing the material, the material is mixed evenly, and the air entraining agent and anti cracking agent are added slowly. And fully stirred and made A material. According to the weight percentage, the amount of water was added, the water reducing agent and reducing agent were added in accordance with the percentage of weight, and the B was prepared. The water reducing rate was high, the material has good adaptability and no formaldehyde. It can improve the workability and water retention rate of the mortar, increase the compressive strength and bond strength.
【技术实现步骤摘要】
一种湿拌砂浆外加剂的制备
本专利技术涉及建筑施工用的湿拌砂浆外加剂
,尤其涉及一种湿拌砂浆外加剂的制备。
技术介绍
随着国家商务部联合公安、交通、建设、质监、环保等部门发布了《关于在部分城市限期禁止现场搅拌砂浆工作的通知》后,建筑工程中的砂浆逐渐被商品砂浆所代替。商品砂浆有干混和湿拌两种形式。干混砂浆,是由胶凝材料、矿物掺和料、细骨料、外加剂等固体材料组合而成,按照一定配比通过干混工艺进行预拌而成的一种干粉建筑材料。但是,由于干混砂浆在运送过程中容易离析,且原料砂需要经过烘干后进行多级筛分,能耗大;干混过程中所产生粉尘大,除尘难度大,污染环境,并且为保证干混砂浆的质量,国家规定:制备干混砂浆时将砂子烘干后再与胶凝材料混合,而施工时又必须加水搅拌形成湿拌砂浆,增大了生产的负担。湿拌砂浆是指将各种原材料(包括水)经合理配制,进行工厂化生产后,由运输工具(通常用密闭罐车)运送到工地。普通湿拌砂浆从生产点运输到现场使用,如同预拌混凝土一样,对其工作性能的要求较高,要保证一定的可操作时间(即开放时间),砂浆在加水拌合后,在初凝以前需要具有足够好的和易性、能进行正常施工、操作,且硬化后要满足工程结构对力学性能以及耐久性等方面的要求。因此,性能良好,兼具保水、缓凝等效果的砂浆外加剂是保证湿拌砂浆各方面性能的技术关键。
技术实现思路
为了克服现有技术的问题,本专利技术提供一种湿拌砂浆外加剂的制备,它减水率高、材料适应性较好、不含甲醛,更加绿色环保,可提高砂浆的和易性和保水率、增加抗压强度和粘结强度,使用操作方便,可直接添加。本专利技术的技术方案是:提供一种湿拌砂浆外加剂 ...
【技术保护点】
一种湿拌砂浆外加剂的制备,其特征在于:由A料和B料组成,其中,A料由以下重量百分比的组分组成:引气剂:1%~2.5%,缓凝剂:1%~3.5%,抗裂剂:0.1%~0.25%,增强剂:1%~2.5%,保水剂:1%~1.8%,余量为水;B料由以下重量百分比的组分组成:减水剂:4%~15%,减缩剂:0.1%~0.9%,余量为水。
【技术特征摘要】
1.一种湿拌砂浆外加剂的制备,其特征在于:由A料和B料组成,其中,A料由以下重量百分比的组分组成:引气剂:1%~2.5%,缓凝剂:1%~3.5%,抗裂剂:0.1%~0.25%,增强剂:1%~2.5%,保水剂:1%~1.8%,余量为水;B料由以下重量百分比的组分组成:减水剂:4%~15%,减缩剂:0.1%~0.9%,余量为水。2.根据权利要求1所述一种湿拌砂浆外加剂的制备,其特征在于:所述引气剂为十二烷基硫酸钠、十二烷基磺酸钠、十二烷基苯磺酸钠中的至少一种;所述缓凝剂为葡萄糖酸钠、蔗糖、柠檬酸、焦磷酸钠中的至少一种;所述抗裂剂为羟丙基甲基...
【专利技术属性】
技术研发人员:刘进辉,张永,
申请(专利权)人:廊坊荣盛混凝土有限公司,
类型:发明
国别省市:河北,13
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