🧱 Hollow Concrete Blocks – Durable, Cost-Efficient Building Units
🧱 Multi-Type Hollow Blocks: Standard, Load-Bearing, Lightweight, Insulated, Solid-Face, Interlocking, Soundproof
🌍 Origin Options: India, UAE, Turkey, Egypt, Vietnam, Morocco
✅ Compliant with ASTM C90, BS 6073, IS 2185 – Lab-tested strength and dimensional tolerances
📦 Packaging: Palletized for forklift handling, containerized export loads
🔁 Applications: Residential buildings, commercial structures, boundary walls, industrial compounds, retaining walls
Hollow Concrete Blocks (HCBs) offer high compressive strength, thermal insulation, and ease of installation — making them ideal for low- to high-rise buildings and infrastructure. NNRV supplies multi-size, multi-function HCBs, produced under controlled factory conditions, ensuring consistency and project compliance.
From load-bearing blocks for structural walls to lightweight infill blocks for cost reduction, our offering is tailored to your regional standards and climate-specific requirements.
🔹 Types of Hollow Blocks Available
| Type | Use Case | Standard |
|---|---|---|
Standard Hollow Block (400x200x200 mm) | Walls, foundations | ASTM C90 / IS 2185 |
Load-Bearing Hollow Block | Structural walls, multi-storey | ≥ 7.5 MPa strength |
Lightweight Hollow Block (AAC) | Partitioning, upper floors, eco-builds | EN 771-3, ASTM C495 |
Insulated Hollow Block | Hot/cold climate zones, energy-efficient walls | Custom/core-filled |
| Solid-Face or Closed-End Block | Facades, water-prone areas | Custom mold |
| Interlocking Hollow Block | Mortarless walls, modular builds | Local standards |
| Soundproof Hollow Block | Schools, hospitals, mixed-use buildings | Enhanced density |
✅ Sizes and hole patterns can be customized. Options for core filling, plaster finish, or exposed face.
🔹 Technical Specifications (Standard 400x200x200 mm)
| Parameter | Value |
|---|---|
| Compressive Strength | 5–10 MPa (grade dependent) |
| Density | 1500–2100 kg/m³ |
| Water Absorption | ≤ 10% |
| Thermal Conductivity | 0.5 – 1.0 W/m·K |
| Fire Resistance | 2–4 hours (depending on thickness) |
| Weight per Block | ~14–22 kg |
| Holes / Cores | 2–3 chambers |
🧪 Each batch includes COA, cube/crush test report, and dimensional QA log.
📦 Packaging & Delivery Options
| Packaging Type | Load Quantity (approx.) | Ideal Use |
|---|---|---|
| Palletized (Plastic Strapped) | 900–1200 blocks / 20’ FCL | Retail, local distribution |
| Loose Containerized Load | 1400–1600 blocks / 20’ FCL | Cost-optimized bulk buyers |
| Flatbed Truck Delivery | Regional / Local deliveries | High-volume projects |
| Wrapped Pallets (Export) | Weather-protected for long-haul | Seaport or warehouse stocking |
📍 Export Hubs: Jebel Ali, Mersin, Mundra, Haiphong, Port Said
📦 Incoterms: CIF / FOB / EXW / DDP available
🔧 How It Works – Sourcing & Supply Process
1️⃣ Inquiry & Product Spec
Indicate type, size, compressive strength, quantity, usage, and port of delivery.
2️⃣ Quotation & Logistics Plan
Receive CIF/FOB quote with full loading plan, test reports, and Incoterms® 2020 compliance.
3️⃣ Contract & Payment
Sign PI or SPA. Payment via LC, TT, or escrow. Production schedule confirmed.
4️⃣ Production & QA
Blocks molded, cured, and tested. COA and QC photos submitted pre-shipment.
5️⃣ Delivery & After-Sales Support
Shipped per plan. NNRV supports unloading, site stacking, and post-sale needs.
✅ Why Choose NNRV for Hollow Blocks?
🧱 Multiformat Offering: Standard, AAC, Interlocking, Insulated
🧪 Standards-Compliant: ASTM / BS / IS tests with full QA/QC trail
🌎 Global Delivery: Africa, Middle East, Southeast Asia, Europe
🔧 Custom Dimensions: Tailored molds, reinforcement, or finishes
🌱 Eco-Options: Fly ash / slag blended blocks, AAC, and energy-efficient types
📈 Scalable Supply: Up to 10,000 blocks/week production per site
🏆 Client Success Story
Social Housing Project – West Africa
Delivered 480,000 standard and insulated hollow blocks over 3 months, enabling the completion of 2,000+ affordable housing units. Reduced labor and construction time by 25%.
❓ Frequently Asked Questions (FAQs)
Q1: Can I request different block sizes in one container?
Yes — we support mixed loading per container if compatible dimensions.
Q2: Do you provide strength testing or third-party verification?
Yes — we supply cube test results and optional SGS/BV inspection reports.
Q3: Do you offer hollow interlocking or mortarless options?
Yes — available upon request with installation guide.
Q4: What’s your minimum order quantity (MOQ)?
1×20 ft container (~1000–1600 blocks depending on type).
Q5: Are eco-blocks available?
Yes — ask about blocks made with fly ash, slag, or AAC foam alternatives.
📩 Build Better, Smarter, and Stronger with Hollow Blocks from NNRV
Contact us now for certified hollow concrete blocks — in the type, size, and strength your project demands.
NNRV – Foundations That Last.