Overview
Concrete floor patch is a cement-based or polymer-modified material designed for repairing minor surface damage in concrete slabs. These formulations combine Portland cement, fine aggregates, and additives to ensure proper adhesion and durability. Modern variants may include epoxy or acrylic polymers for enhanced performance. Unlike standard concrete mixes, patching compounds feature optimized particle size distribution and shrinkage control agents. This allows them to fill small cavities (typically <50mm deep) without cracking. Industrial-grade products often meet ASTM C928 standards for rapid-setting repair materials.
Physical and Chemical Properties
High-quality patches exhibit compressive strengths of 20-50 MPa after 28 days curing, with thermal expansion coefficients matching existing concrete (10-14 μm/m°C). Polymer-modified versions show improved flexural strength (3-8 MPa) and reduced permeability. The chemical composition typically includes calcium silicates (C3S, C2S) for hydration, along with calcium sulfate to control setting time. Some formulations contain crystalline waterproofing additives or corrosion inhibitors for specialized applications. pH values remain strongly alkaline during application, requiring proper handling precautions.
Main Applications
Primary uses include repairing warehouse floors, factory slabs, and parking garage surfaces where small spalls or pop-outs compromise functionality. The material is ideal for addressing surface defects caused by freeze-thaw cycles, impact damage, or surface scaling. In B2B contexts, contractors frequently employ these patches as part of concrete floor restoration systems prior to applying coatings or toppings. Specialized variants exist for vertical overhead repairs (thixotropic formulations) or high-traffic areas (fiber-reinforced types).
Safety and Storage
Always store powder products in original packaging with moisture barriers below 40% RH. Pre-mixed pastes require protection from freezing and typically have 6-12 month shelf lives. Discard any material showing skinning or hardening in containers. During application, ensure adequate ventilation when working in confined spaces. Skin contact may cause irritation due to alkaline content (pH >11). Immediate rinsing with water is recommended for accidental exposure. Cured material presents no significant hazards.
B2B Procurement Guide
For commercial purchases, verify the product's compliance with ASTM C928 (rapid hardening) or C387 (packaged dry mix) standards. Key procurement factors include: batch consistency (critical for color matching), open time (15-90 minutes typically), and compressive strength development rate. Bulk orders (pallet quantities) often reduce unit costs by 15-30%. Consider regional suppliers to minimize shipping expenses for these dense materials. Technical datasheets should clearly indicate bond strength values tested per ASTM C882 (typically >1.5 MPa for quality products).
Related Manufacturers
- 主营：路面灌缝胶、沥青冷补料、沥青砂、压缝带
- 主营：灌缝胶、沥青砂、沥青冷补料、伸缩嵌缝胶、快速养护密封胶
- 主营：土工膜、密封胶、防裂贴、修补带、裂缝修补、缝隙修补胶、土工布、抗裂贴、贴缝带、防渗膜、防裂材料、立面裂缝、防水胶带、路面灌缝胶、路面冷补料、沥青冷补料、道路灌缝胶、聚酯玻纤布、路面玻纤布、加厚无纺布、道路填缝料、复合土工格栅、双向玻纤格栅、涤纶格栅定制、玻璃聚酯纤维
- 主营：高强无收缩灌浆料、速凝剂、锚固剂、环氧修补砂浆、水玻璃、砂浆王、膨胀剂、道路抢修料、脱模剂、防水粉、孔道压浆料、透水混凝土增强剂、沥青冷补料
- 主营：石材修补胶、除锈剂、清洗剂
- 主营：22#白油、半石蜡、粉状脂、石油焦、缝纫机油、道路沥青、工业石蜡、精炼石蜡、500基础油、精练石蜡、工业白油、橡胶防护蜡、工业级石蜡、工业级白油、碳石墨增碳剂、机油润滑油助剂
- 主营：道路修补砂浆、防静电水泥砂浆、不发火水泥砂浆、沥青冷补料、不发火细石混凝土
- 主营：ALC板材粘结剂、轻质抹灰石膏、玻化微珠砂浆、水泥路面修补剂、高强无收缩灌浆料、强力瓷砖胶、耐水腻子粉、粘结砂浆、外墙柔性腻子粉、粉刷石膏、嵌缝石膏、抗裂砂浆、砌筑砂浆、抹灰砂浆、真石漆专用腻子粉、防霉耐水腻子粉、防水砂浆、钢化干粉墙漆、混凝土界面处理剂、乳胶漆、腻子粉、收缩灌浆料、板材粘结剂、聚合物粘结砂浆、聚合物抗裂抹面砂浆
- 主营：速凝剂、减水剂、灌浆料、环氧砂浆、不发火防静电砂浆
- 主营：速凝剂、液体无碱速凝剂、水玻璃、道路快速修补料、水泥基渗透结晶、锚固剂、支座灌浆料、压浆料、灌浆料、减水剂、堵漏王、脱模剂、砂浆王、膨胀剂、粘结砂浆、聚合物抗裂抹面砂浆、透水混凝土增强剂、微膨胀注浆料
- 主营：环氧胶泥、环氧树脂砂浆、灌浆料、聚合物修补砂浆、水泥混凝土修补料、环氧修补砂浆、水泥地面修补施工、道路修补料、混凝土路面修补施工、道钉锚固剂、灌浆树脂、粘钢胶、植筋胶、混凝土界面剂、混凝土表面增强剂、支座砂浆、重力砂浆、高强聚合物砂浆、环氧树脂灌缝胶、碳纤维布、支座灌浆料、聚合物加固砂浆、起砂处理剂、碳纤维浸渍胶、清水混凝土保护剂
- 主营：灌缝胶、伸缩缝、沥青砂、缝修补、养护修补、水泥路面、冷沥青、喷涂剂、硅沥青、冷补料、免加热、施工易、聚氨酯、冷灌缝、沥青路、道路冷补、沥青冷料、罐底沥青、喷涂路面、路面材料、冷补液体、彩色路面、沥青道路、道路裂缝、坐罐防腐
- 主营：沥青冷补料、沥青砂、沥青路面修复剂、水泥路面修补料、含砂封层、路面改色剂、彩色防滑路面、路面灌缝胶、桥梁伸缩缝灌缝胶
- 主营：沥青修补料、环氧树脂、沥青冷补料、防污闪涂料
- 主营：灌浆料、速凝剂、压浆料、水泥锚固剂、水泥膨胀剂、环氧修补砂浆、聚合物修补砂浆、混凝土养护液