优砾科® 高性能修补材料
优砾科 ® R70 高性能结构修补砂浆
UNIKRETE® R70 High Performance Structural Repair Mortar
技术数据表 | TECHNICAL DATA SHEET
≥ 30.0 MPa (C30)
1 天抗压强度
Compressive strength @ 1 day
≥ 60.0 MPa (C60)
28 天抗压强度
Compressive strength @ 28 days
≥ 6.0 MPa (F6)
28 天抗折强度
Flexural strength @ 28 days
≥ 1.5MPa
拉伸粘结强度
Tensile bond strength
≥ 1.5 MPa (P15)
抗渗压力（7 天）
Impermeability pressure @ 7 days
1产品简介/Product Overview

优砾科 ® R70 高性能结构修补砂浆是一种预拌干混水泥基修补材料，以高强无机胶凝材料、精选级配骨料、矿物功能填料、低收缩改性助剂及增强纤维复合配制而成。本品专为混凝土结构的薄层及厚层修补设计，兼具超高强度、优异粘结、低收缩、高抗渗与卓越的抗冻融循环性能。UNIKRETE® R70 is a pre-bagged, dry-mix cementitious repair mortar formulated from high-strength inorganic binders, selected graded aggregates, mineral functional fillers, low-shrinkage modifying admixtures and reinforcing fibres. It is engineered for both thin-layer and thick-layer repair of concrete structures, combining ultra-high strength, excellent bond, low shrinkage, high impermeability and outstanding freeze-thaw cycling resistance.

2施工厚度/Construction Thickness
参数项目Parameter技术参数Technical Data
单遍施工厚度Application thickness per coat5–20 mm
3典型应用/Typical Applications
冻融破坏区域的混凝土结构修补（立面、顶面、水平面）。
Structural repair of freeze-thaw damaged concrete surfaces (vertical, overhead and horizontal).
桥梁墩柱、防撞墙、桥面板、伸缩缝边缘等暴露构件的结构修补。
Structural repair of bridge piers, parapet walls, bridge decks and expansion joint edges.
水利工程、码头、船闸、溢洪道等水工混凝土的冻融剥蚀修复。
Repair of freeze-thaw scaling on hydraulic structures such as dams, docks, lock chambers and spillways.
工业厂房、仓库地坪的局部结构修补与功能恢复。
Local structural repair and functional restoration of floors in industrial plants and warehouses.
混凝土构件缺棱掉角、蜂窝麻面、露筋等缺陷的结构性修复。
Structural repair of concrete defects including spalled edges, honeycombing and exposed reinforcement.
沿海及除冰盐环境中受氯盐侵蚀混凝土的修补与防护。
Repair and protection of concrete subject to chloride attack in coastal and de-icing salt environments.
作为后续饰面层、防水层或地坪涂料的承载基层。
Load-bearing substrate for subsequent decorative finishes, waterproofing layers or floor coatings.
4包装与储存/Packaging & Storage

包装规格： 30 kg 纸袋。Packaging: 25 kg paper bags; 1,000 kg jumbo bags.

储存条件： 存放于干燥、阴凉、通风良好的库房，以托盘离地存放。严防受潮、淋雨及与地面直接接触。Storage: Store in a dry, cool, well-ventilated area, raised off the floor on pallets. Protect from moisture, rain and direct contact with the ground.

保质期： 原装未开封、阴凉密封储存条件下，自生产日期起 6 个月。Shelf life: 6 months from date of manufacture in unopened, original packaging stored under cool, sealed conditions.