{
  "id": "construction-materials/concrete-repair-patching/renderoc-la55-plus-high-strength-micro-concrete-repair-mortar",
  "title": "Renderoc LA55 Plus - High Strength Micro Concrete Repair Mortar",
  "slug": "renderoc-la55-plus-high-strength-micro-concrete-repair-mortar",
  "description": "High strength, free flowing micro concrete repair mortar conforming to EN1504-3 Class R4. Renderoc LA55 Plus is a fluid micro-concrete for large volume structural repairs at nominal thickness up to 500mm. Achieves 75 MPa @ 56 days with maximum compatibility for concrete compressive strength of 30-75 MPa. Features unique dual expansion system, excellent bond to concrete substrates, extremely low permeability, and sustainable low carbon footprint.",
  "category": "",
  "content": "# Renderoc LA55 Plus - High Strength Micro Concrete Repair Mortar\n\nHigh strength, free flowing micro concrete repair mortar conforming to EN1504-3 Class R4. Renderoc LA55 Plus is a fluid micro-concrete for large volume structural repairs at nominal thickness up to 500mm. Achieves 75 MPa @ 56 days with maximum compatibility for concrete compressive strength of 30-75 MPa. Features unique dual expansion system, excellent bond to concrete substrates, extremely low permeability, and sustainable low carbon footprint.\n\n**Brand:** Fosroc\n\n[View Product](https://www.fosroc.com.au/product/renderoc-la55-plus)",
  "geography": {},
  "metadata": {},
  "publishedAt": "",
  "tags": [],
  "workspaceId": "8edce589-12eb-40c2-ae84-b8a72883a35e",
  "_links": {
    "canonical": "https://fosroc.directory.norg.ai/construction-materials/concrete-repair-patching/renderoc-la55-plus-high-strength-micro-concrete-repair-mortar/"
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  "productInfo": {
    "availability": "unknown",
    "brand": "Fosroc",
    "imageUrl": "https://www.fosroc.com.au/themes/custom/fosroc/images/og-img.jpg"
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  "productIntelligence": "# Renderoc LA55 Plus: High-Strength Micro-Concrete Repair Mortar\n\n## Overview\n\n**Renderoc LA55 Plus** is a high-strength fluid micro-concrete repair product manufactured by Fosroc, specifically engineered for large-volume structural repairs. It represents a specialized solution within the broader Renderoc® concrete repair range, delivering exceptional performance for demanding repair applications.\n\n## Technical Specifications\n\n### Application Thickness\n\nRenderoc LA55 Plus accommodates substantial repair depths:\n- **Maximum thickness:** Up to **500 mm** in a single application\n- **Suitable for:** Large volume structural repairs requiring significant build-up\n\n### Strength Performance\n\nThe product delivers high compressive strength characteristics:\n- **Classification:** High-strength formulation\n- **Performance level:** Exceeds standard repair mortar requirements for structural applications\n\n### Standards Compliance\n\nRenderoc LA55 Plus meets stringent European standards:\n- **Compliance standard:** **EN1504-3 Class R4**\n- **Significance:** EN1504-3 Class R4 certification indicates the product meets European standards for structural repair applications, ensuring reliable performance in critical infrastructure projects\n\n## Product Characteristics\n\n### Material Composition\n\nRenderoc LA55 Plus is formulated as:\n- **Type:** Fluid micro-concrete\n- **Form:** High-build repair mortar\n- **Technology basis:** Cementitious micro-concrete composition\n\n### Key Features\n\n- **Fluid consistency:** Allows for easy placement and consolidation in large volume repairs\n- **Micro-concrete formulation:** Delivers enhanced flowability while maintaining structural strength\n- **High-build capability:** Single-application depths up to 500 mm eliminate the need for multiple layers in many applications\n- **Structural reliability:** EN1504-3 Class R4 compliance ensures performance on critical infrastructure\n\n## Applications\n\nRenderoc LA55 Plus is ideally suited for:\n\n- **Large volume structural repairs** on concrete infrastructure\n- **Deep section repairs** requiring single-application placement\n- **Critical infrastructure projects** where structural integrity is paramount\n- **Spalled concrete repair** on major structures\n- **Heritage and modern infrastructure projects** requiring durable, long-term solutions\n\n## Product Context Within Renderoc Range\n\nRenderoc LA55 Plus represents the large-volume structural repair solution within the Renderoc® range, complementing other specialized products:\n\n- **Renderoc HB:** General patch repairs (up to 80 mm)\n- **Renderoc HB25:** Vertical patches (10–80 mm)\n- **Renderoc LA55 Plus:** Large volume structural repairs (up to 500 mm)\n- **Renderoc G:** Highly corrosive environment applications\n- **Renderoc CAC:** Biogenic corrosion resistance in wastewater applications\n\n## Manufacturer\n\nRenderoc LA55 Plus is manufactured and distributed by **Fosroc** through **Parchem Construction Supplies Pty Ltd** in Australia and New Zealand. Fosroc is a globally recognized construction chemicals company with over 80 years of heritage, now part of Saint-Gobain's High Performance Solutions segment.\n\n---\n\n### References\n\n- [1] directory/business_homepage/fosroc.md"
}