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1. 发明授权

US4039345A Shrinkage-compensating portland cement concrete and mortar compositions 失效
标题翻译：收缩补偿波特兰水泥混凝土和砂浆成分
公开(公告)号：US4039345A
公开(公告)日：1977-08-02
申请号：US596701
申请日：1975-07-17
申请人： Gale L. Emig , Ronald H. Cooper , R. Douglas Eash
发明人： Gale L. Emig , Ronald H. Cooper , R. Douglas Eash
IPC分类号： C04B28/04 , C04B28/06 , C04B7/35
CPC分类号： C04B28/04 , C04B28/065
摘要： This invention pertains to improved shrinkage compensating portland cement concrete and mortar compositions comprising essentially an expansive portland cement, mineral aggregate, from about 5 to about 25 percent based on cement weight of a styrene-butadiene-1,3 copolymer having a styrene to butadiene weight ratio of about 30:70 to 70:30, water and certain minor amounts of nonionic and anionic surfactants, and a foam depressant. When properly restrained by either external restraints or internal restraints in the form of ordinary reinforcement or fibers of various lengths, these compositions possess improved mechanical and physical properties such as compressive and flexural strengths and unexpectedly enhanced freeze-thaw resistance. Such compositions are particularly suited for use in the construction of crack-free structures.
摘要翻译：本发明涉及改进的收缩补偿波特兰水泥混凝土和砂浆组合物，其基本上包含膨胀的波特兰水泥，矿物骨料，基于具有苯乙烯 - 丁二烯重量的苯乙烯 - 丁二烯-1,3-共聚物的水泥重量约5至约25％约30:70至70:30的比例，水和某些少量的非离子和阴离子表面活性剂和泡沫抑制剂。当通过外部约束或以普通增强材料形式或各种长度的纤维的内部约束适当地限制时，这些组合物具有改善的机械和物理性能，例如压缩和弯曲强度，并且出人意料地提高了抗冻融性。这种组合物特别适用于构建无裂纹结构。

2. 发明授权

US4202809A Styrene-butadiene-acrylonitrile interpolymer latex based cement additives 失效
标题翻译：苯乙烯 - 丁二烯 - 丙烯腈互聚物胶乳基水泥添加剂
公开(公告)号：US4202809A
公开(公告)日：1980-05-13
申请号：US916168
申请日：1978-06-16
申请人： R. Douglas Eash
发明人： R. Douglas Eash
IPC分类号： C04B24/26 , C04B40/00 , C08K5/00 , C08L55/02 , C08K3/00
CPC分类号： C08K5/00 , C04B24/2688 , C04B40/0039 , C08L55/02
摘要： This invention is directed to cement additives consisting essentially of (1) a styrene-butadiene-acrylonitrile interpolymer latex, (2) a nonionic surfactant, (3) an anionic surfactant, and (4) a polyorganosiloxane foam depressant, which additives provide portland cement compositions having excellent strength properties.
摘要翻译：本发明涉及基本上由（1）苯乙烯 - 丁二烯 - 丙烯腈共聚物胶乳，（2）非离子表面活性剂，（3）阴离子表面活性剂和（4）聚有机硅氧烷泡沫抑制剂组成的水泥添加剂，所述添加剂提供波特兰水泥组合物具有优异的强度性能。

3. 发明授权

US4086201A Styrene-butadiene interpolymer latex based cement additives 失效
标题翻译：苯乙烯 - 丁二烯互聚物胶乳基水泥添加剂
公开(公告)号：US4086201A
公开(公告)日：1978-04-25
申请号：US816052
申请日：1977-07-15
申请人： James Peters , Robert D. VanDell , R. Douglas Eash , Lz F. Lamoria
发明人： James Peters , Robert D. VanDell , R. Douglas Eash , Lz F. Lamoria
IPC分类号： C04B28/02 , C08K5/42 , C08L25/10 , C08L55/02 , C08K3/00
CPC分类号： C08K5/42 , C04B28/02 , C08L25/10 , C08L55/02
摘要： This invention is directed to cement additives consisting essentially of (1) a styrene-butadiene interpolymer latex, (2) a nonionic surfactant, (3) a polyelectrolyte comprising the product obtained by copolymerizing methylmethacrylate and a sulfoester of .alpha.-methylene carboxylic acid or its salt, and (4) a polyorganosiloxane foam depressant, which additives provide portland cement compositions having excellent strength properties, workability and adhesion to cementitious substrates.
摘要翻译：本发明涉及基本上由（1）苯乙烯 - 丁二烯互聚物胶乳，（2）非离子表面活性剂，（3）聚电解质组成的聚电解质组成的水泥添加剂，所述聚电解质包括通过甲基丙烯酸甲酯和α-亚甲基羧酸的磺酯或其盐，和（4）聚有机硅氧烷泡沫抑制剂，这些添加剂提供具有优异的强度性能，可加工性和对水泥基材的粘附性的波特兰水泥组合物。

4. 发明授权

US4014840A Non-distressing accelerated heat cure of portland cement concrete systems 失效
标题翻译：波特兰水泥混凝土系统的非窘迫加速热固化
公开(公告)号：US4014840A
公开(公告)日：1977-03-29
申请号：US478480
申请日：1974-06-12
申请人： Gale L. Emig , Robert H. Anspaugh , R. Douglas Eash
发明人： Gale L. Emig , Robert H. Anspaugh , R. Douglas Eash
IPC分类号： C04B24/26 , C04B40/02 , C08L27/08
CPC分类号： C04B40/0263 , C04B24/2682
摘要： A process for accomplishing a non-distressing accelerated heat cure of portland cement concrete systems comprising (1) admixing portland cement concrete with minor amounts of a vinylidene chloride polymer latex, than (2) heating the admixture to temperatures of from at least about 100.degree. F to about 250.degree. F under less than about 80 percent relative humidity for a period of at least about 4 hours. This process is particularly applicable for the preparation of portland cement concrete precasting and prestressing operations, where optimum strength is desired in the shortest possible time.
摘要翻译：一种完成波特兰水泥混凝土系统的非窘迫加速热固化的方法，包括（1）将波特兰水泥混凝土与少量的偏二氯乙烯聚合物胶乳混合，比（2）将混合物加热至至少约100℃ 在约80％相对湿度下F至约250°F至少约4小时。该方法特别适用于制造波特兰水泥混凝土预制和预应力作业，在最短时间内需要最佳强度。

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