环氧树脂胶技术研究及其工程应用

本文介绍了环氧树脂胶的配方设计、植筋应用中技术参数的选取,并运用分子理论分析了影响粘合强度的各种因素,提出了环氧树脂胶植筋的应用价值.     

丙烯酸酯-丙烯酸共聚物类聚羧酸高分子分散剂对聚丙烯中碳酸钙填料的分散效果研究

将丙烯酸丁酯-丙烯酸共聚物类分散剂处理过的碳酸钙添加到聚丙烯塑料中,通过电镜扫描观察到,碳酸钙均匀分布在树脂中.当丙烯酸丁酯与丙烯酸的摩尔比为1:1,添加量达3%时,可使含碳酸钙20%的聚丙烯塑料的拉伸强度由原来的18.20 MPa增加到25.2 MPa,缺u冲击强度由3.7kJ/m2增加到4.8 kJ/m2,断裂伸长率由8.7%增加到12.2%.     

卡普里之屋

一个与海景互动的房屋,一种奇幻的生活方式,设计师通过自己的设计,开创了一种卓然不同的气氛与地中海自由精神之间的永恒和谐。     

低成本的未来校园

Braamcamp中学坐落于葡萄牙里斯本弗莱雷历史中心的边缘。占地面积约17,380平方米,与周围的陡地紧密相邻。所在地的一部分在Pontinha城市内部,并跨越了其北部边界外的一小部分,面向一个未建造好的山谷。     

无限接近自然的音乐办公室

这个名为“Animal Music”的音乐录音办公室位于阿根廷,格调清新与自然环境无限结合。不同于大型写字楼的办公空间,白天充分沐浴天光的照射,空间小而温暖就像置身家中一样,可以阅读、聊天、休息和交流厨艺等。这是未来小型办公室的趋势之一。     

Stress arch bunch and its formation mechanism in blocky stratified rock masses

Stress arch is a common phenomenon occurring in continuous materials and has also been proved to have great influences on the self-stabilization of soils or rock masses after excavation.In this paper,based on UDEC simulation,stress redistribution after excavation is investigated for a kind of special discontinuous material,i.e.blocky stratified rock mass.A layered stress arch system is observed with each stress arch lying over another.This special phenomenon is defined herein as stress arch bunch.Effects of dip angle of bedding plane,lateral pressure and joint offset on this stress arch bunch are studied.Its formation mechanism is also discussed based on voussoir beam theory.     

Formation Mechanism of the Cluster Space of Wuhan Metropolitan Area amid Evolution of Power Relationship

With the urban regionalization and regional urbanization, the spatial structure of cluster appears in some metropolitan areas, among which Wuhan can be taken as a typical case. This paper analyzes the formation of Wuhan metropolitan cluster space from the perspective of power relationship. A twin-city approach is developed in the peripheral area of Wuhan caused by the game between local governments at different levels. With the equal development opportunities in all directions and the alliances between different district governments and capital, the balancedly embedded cluster space is formed in Wuhan metropolitan area. And if there are no huge internal and external changes, the cluster space in Wuhan will continue to develop.     

京张铁路历史建筑纪略

小引时至今日,经济建设、城市建设、历史文化遗存保护……诸多问题错综一体,困扰着建筑界、文物界中的那些试图兼顾建设与保护、使二者相得益彰的带有理想主义倾向的工作者们。为此,北京市建筑设计研究院《建筑创作》杂志社与中国文物研究所文物保护传统技术与工艺工作室合作,组成“建筑文化调查小组”,于近     

脂肪族减水剂的合成及其与聚羧酸减水剂复配研究

以甲醛（F）、丙酮（A）、磺化剂（S）为主要原料,合成了脂肪族减水剂,系统研究了反应原料用量与磺化剂种类对脂肪族减水剂分散性能的影响,并对自制的脂肪族减水剂结构进行了红外光谱表征。通过脂肪族减水剂与聚羧酸减水剂的复配研究,提高这两类减水剂的应用潜力。     

聚羧酸系高性能减水剂的性能及应用研究

研究了聚羧酸高性能减水剂的性能及在混凝土中的应用。经实验证实,聚羧酸系高性能减水剂可以用来配制C30～C80商品泵送混凝土、80小时超缓凝商品泵送混凝土和具有高耐久性的海工混凝土。