公开(公告)号：KR101428984B1

公开(公告)日：2014-08-13

申请号：KR1020140017062

申请日：2014-02-14

Applicant: 예도컨스텍(주)

Inventor： 김현유

IPC: C04B24/24 ,  C04B22/00 ,  E04G23/02

CPC classification number: C04B24/24 ,  C04B28/04 ,  C04B2103/10 ,  C04B2103/20 ,  C04B2103/302 ,  C04B2111/0075 ,  C04B2111/72 ,  E01C11/005

Abstract: The present invention relates to a rapidly-hardening cement concrete composition with improved strength and durability containing 3 to 30 wt% of inorganic binding material, 26 to 65 wt% of fine aggregate, 20 to 60 wt% of thick aggregate, 0.1 to 15 wt% of water, and 0.01 to 12 wt% of performance enhancer, in which the performance enhancer contains 30 to 90 wt% of styrene-acryl, 5 to 30 wt% of methyl metahcrylate, 1 to 25 wt% of butylacrylate, 0.1 to 20 wt% of butadiene, 0.01 to 10 wt% of isoprene, 0.01 to 10 wt% of polyvinyl methylether, 0.001 to 5 wt% of anti-foaming agent, and 0.001 to 5 wt% of emulsifying agent, and a concrete structure repair method using same. According to the present invention, the performance enhancer in which styrene-acryl, methyl metahcrylate, styrene-butadiene, butylacrylate, isoprene, and polyvinyl methylether are mixed is used so that concrete workability and durability are improved and, particularly, flexural strength and tensile strength are improved. Also, general portland cement, magnesium or calcium sulfo-aluminate, calcium aluminate, gypsum, silicate white clay, silicate soda, and moldenite are used so as to improve initial strength, long-term strength, durability, chloride resistance, freeze-thaw resistance, and the like.

Abstract translation: 本发明涉及一种具有改善的强度和耐久性的快速硬化水泥混凝土组合物，其包含3至30重量％的无机粘合材料，26至65重量％的细骨料，20至60重量％的粗骨料，0.1至15重量％ 水和0.01〜12重量％的性能增强剂，其中性能增强剂含有30〜90重量％的苯乙烯 - 丙烯酸，5〜30重量％的异丙烯酸甲酯，1〜25重量％的丙烯酸丁酯，0.1〜20 丁二烯的重量％，异戊二烯的0.01〜10重量％，聚乙烯基甲基醚0.01〜10重量％，消泡剂0.001〜5重量％，乳化剂0.001〜5重量％，以及使用 相同。 根据本发明，使用苯乙烯 - 丙烯酸，异丙烯酸甲酯，苯乙烯 - 丁二烯，丙烯酸丁酯，异戊二烯和聚乙烯基甲基醚混合的性能增强剂，从而提高混凝土的加工性和耐久性，特别是弯曲强度和拉伸强度 改进了 另外，使用普通硅酸盐水泥，磺酸铝钙或铝酸钙，铝酸钙，石膏，硅酸盐白土，硅酸钠和模板石，以提高初始强度，长期强度，耐久性，耐氯化物，抗冻融性 ，等等。