高强度无收缩灌浆料技术简介 (High-Strength Non-Shrink Grouting Material Technical Profile)
特点 (Features)
高强度无收缩灌浆料以特种水泥为胶凝材料，结合高强度骨料（石英砂/金刚砂）及微膨胀剂配制而成，具有自流性好（流动度≥240mm）、快硬早强（1-3天抗压强度≥30MPa）、无收缩（竖向膨胀率0.02%-0.03%）及微膨胀补偿（消除收缩应力）等特性。其耐油渗性（机油浸泡30天强度提升10%）、耐候性（-40℃~600℃稳定）和低碱耐腐蚀性（碱含量≤0.6%）显著优于传统灌浆材料。
优点 (Advantages)
- 长效承载：28天抗压强度达65-80MPa，承载力提升30%-50%，使用寿命超30年；
- 施工高效：自流免振，单次灌浆厚度可达200mm，工期缩短40%；
- 环保安全：无VOC排放，符合GB/T 50448-2008标准；
- 多功能性：支持冬季施工（-10℃适用），适配核电、高铁等特种工程。
用途 (Applications)
- 工业设备：大型机床、发电机底座二次灌浆（抗油渗/抗震）；
- 建筑加固：梁柱节点补强、混凝土裂缝修复（承载力恢复率≥95%）；
- 交通工程：机场跑道抢修、桥梁伸缩缝嵌固（快速开放交通）；
- 核电/石化：高温高压管道固定、防辐射结构灌浆（耐500℃热震）。
High-Strength Non-Shrink Grouting Material Technical Profile
Features
High-strength non-shrink grouting material is a cementitious composite with high-performance aggregates (quartz/silicon carbide) and micro-expansive additives, featuring superior self-flowability (≥240mm spread), rapid hardening (≥30MPa compressive strength in 1-3 days), zero shrinkage (0.02%-0.03% vertical expansion), and micro-expansion compensation (stress-free bonding). Its oil resistance (10% strength gain after 30-day oil immersion), weatherability (-40℃~600℃ stability), and low-alkali corrosion resistance (≤0.6% alkali content) outperform conventional materials.
Advantages
- High durability: 28-day strength reaches 65-80MPa, with 30%-50% load capacity enhancement and 30-year service life;
- Construction efficiency: Self-flowing and vibration-free, achieving 200mm single-layer placement and 40% time savings;
- Eco-safety: Zero VOC emissions, compliant with GB/T 50448-2008;
- Multi-functional: Supports -10℃ low-temperature construction and nuclear/power plant applications.
Applications
- Industrial equipment: Heavy machinery base grouting (oil/water resistance);
- Civil engineering: Beam-column reinforcement, concrete crack repair (95% load recovery);
- Transportation: Airport runway emergency repair, bridge expansion joint sealing (rapid reopening);
- Nuclear/petrochemical: High-temperature pipeline anchoring (500℃ thermal shock resistance).