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    • 8. 发明公开
    • 콘크리트 주입관 연결장치 및 이를 이용한 콘크리트 충전 강관의 시공방법
    • 用于连接混凝土注射管的装置和用于与装置构造混凝土填充钢管的方法
    • KR1020140111532A
    • 2014-09-19
    • KR1020130025808
    • 2013-03-11
    • 주식회사 포스코건설
    • 김현배이종인김우재유조형윤수원홍석범
    • E04G21/02E04C3/34
    • The present invention relates to a concrete injection tube connecting device and a method to construct a concrete-filled steel tube using the same, wherein the concrete injection tube connecting device connects a concrete injection tube to a steel tube such that concrete can fill from the outside of the steel tube to the inside of the steel tube through the concrete injection tube when the concrete-filled steel tube is constructed. According to the present invention, a concrete injection tube connecting device comprises: a supporting plate covering a concrete inlet in a steel tube by being coupled to the side wall of the steel tube, and having a first through-hole formed in the middle thereof and connected to the concrete inlet; an opening and closing plate guide coupled to the supporting plate such that a guide groove can be formed between the supporting plate and the opening and closing plate guide; an opening and closing plate capable of opening or closing the first through-hole by being inserted to be able to slide in the guide groove; and a fixating unit detachably coupling the supporting plate to the side wall of the steel tube.
    • 混凝土注射管连接装置及其制造方法技术领域本发明涉及一种混凝土注射管连接装置和使用其的混凝土填充钢管的构造方法,其中,混凝土注射管连接装置将混凝土注射管连接到钢管,使混凝土从外部填充 的钢管通过混凝土注射管在钢管内部,当混凝土填充钢管构成时。 根据本发明,一种混凝土注射管连接装置包括:支撑板,其通过联接到钢管的侧壁而覆盖钢管中的混凝土入口,并且在其中间形成有第一通孔, 连接到混凝土入口; 打开和关闭板引导件,其联接到支撑板,使得可以在支撑板和开闭板引导件之间形成引导槽; 打开和关闭板,其能够通过插入以能够在引导槽中滑动来打开或关闭第一通孔; 以及将支撑板可拆卸地联接到钢管的侧壁的固定单元。
    • 10. 发明公开
    • 고내구성 하이볼륨 고로슬래그 콘크리트
    • 高耐久混凝土含有高容积的SLAG
    • KR1020130087663A
    • 2013-08-07
    • KR1020120008683
    • 2012-01-30
    • 주식회사 인트켐주식회사 포스코건설
    • 안상욱박동철양완희이정우황지순김현배이종인김우재유조형홍석범
    • C04B18/14C04B22/14C04B24/24C04B28/06
    • Y02W30/94C04B18/141C04B22/143C04B24/24C04B28/06
    • PURPOSE: A high durable concrete containing high volume blast furnace slag is provided to secure fluidity and high durability by adding an alkali activator of a specific composition to a binder while increasing the usage of blast furnace slag to 90% of the binder. CONSTITUTION: A high durable high-volume blast furnace slag uses 50-90 weight% of blast furnace powder slag, 9.9-47 weight% of normal portland cement, and 0.1-3 weight% of an alkali activator. The unit binder weight during mixing concrete is 250-800kg/m^3, and the unit water is140-400kg/m^3. The alkali activator comprises: calcium peri aluminate(4CaO·3(Al2O3, Fe2O3)·SO3) powder; sodium calcium sulfate(Na2Ca(SO4)2) powder; and pulverized calcium sulfate-silica sol powder. The pulverized calcium sulfate-silica sol powder is manufactured by adding silica sol to CaSO4 and pulverizing the mixture. The specific gravity of the alkali activator is 2.20-3.10, and the alkali activator contains 25-65% of SO3. [Reference numerals] (AA) Outside air temperature
    • 目的:提供一种含高容量高炉矿渣的高耐用混凝土,以通过向粘合剂中加入特定组成的碱活化剂来确保流动性和高耐久性,同时将高炉矿渣的使用量增加到粘合剂的90%。 构成:高耐用的高容量高炉矿渣使用50-90重量%的高炉粉渣,9.9-47重量%的普通硅酸盐水泥和0.1-3重量%的碱活化剂。 混凝土搅拌机单位粘度为250-800kg / m ^ 3,单位水量为140-400kg / m ^ 3。 碱活化剂包括:铝酸钙(4CaO·3(Al2O3,Fe2O3)·SO3)粉末; 硫酸钙钠(Na2Ca(SO4)2)粉末; 和粉碎的硫酸钙二氧化硅溶胶粉末。 通过将硅溶胶加入到CaSO 4中并粉碎混合物来制造粉碎的硫酸钙 - 硅溶胶粉末。 碱活化剂的比重为2.20-3.10,碱活化剂含有25-65%的SO3。 (附图标记)(AA)外部空气温度