High strength and frost resistance — suitable for various climatic conditions Lightweight — the blocks weigh nearly twice less than traditional brickwork, making transportation and installation easier Environmentally friendly — made from natural raw materials, safe for humans and the environment Excellent thermal insulation — helps retain heat and reduce energy costs Breathability — the blocks "breathe", allowing natural humidity regulation indoors Fire safety — they do not burn, produce smoke, or melt Durability — built to last for decades without deterioration
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Expanded Clay Concrete
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Expanded clay concrete blocks are among the best and most progressive construction materials available today. Their use in the construction industry is steadily growing due to their high quality and a wide range of positive characteristics, making them a long-lasting and reliable solution.
USE OF SOLID EXPANDED CLAY BLOCKS AS PRIMARY BUILDING MATERIAL IN MULTI-STORY CONSTRUCTION: AN ENERGY-EFFICIENT, ECO-FRIENDLY, FIRE-RESISTANT AND LIGHTWEIGHT SOLUTION
6. Long service life: 50–75 years
5. Eco-friendliness and safety:
4. Excellent sound insulation:
3. Lightweight — reduces structural load on foundation:
2. Fire resistance and no toxic emissions:
1. Low thermal conductivity — comfort without additional insulation:
II. ECONOMIC EFFICIENCY
I. SCIENTIFIC AND TECHNICAL FOUNDATIONS
Withstands 300+ freeze–thaw cycles
Does not deform under extreme weather
Bonding between blocks forms an almost monolithic structure
Buildings made of expanded clay blocks built in the 1970s in Russia are still in use today
Composition: clay, cement, water — 100% natural materials
Contains no formaldehyde, styrene, or toxins
Resistant to mold, mildew, dust, and insects
Complies with ISO 14001, SanPiN 2.1.2.1002-00, and GOST 31359-2007
Multi-pore structure provides 30–50 dB noise reduction
Complies with SanPiN 2.2.4/2.1.8.562-96 hygiene standards
Density of expanded clay block: 500–900 kg/m³
Brick wall density: 1400–1800 kg/m³
Reduces weight of each floor by 40–50%, which: ✔ Decreases foundation size and cost ✔ Requires less reinforcement ✔ Improves seismic resilience as per SP 14.13330.2014
According to GOST 30244: Class NG (non-combustible)
Withstands temperatures up to 1200 °C
Foam insulation materials burn and emit toxic smoke ✔ Expanded clay block does not burn ✔ Emits no gases ✔ Does not spread under cladding Fully meets SP 2.13130.2012 and the Emergency Ministry’s fire safety standards
Expanded clay blocks: λ = 0.10–0.18 W/m·K
Fired brick: λ = 0.60–0.90 W/m·K
Heat loss through walls is reduced by 3–5 times
Fully complies with SP 50.13330.2012 and SNiP 23-02-2003 standards — no need for foam or mineral wool insulation
Ensures a stable indoor climate and minimal temperature fluctuations
Material cost;Average;+10%;Offset by speed and lightness
Labor cost;High;Low;30–40% labor savings
Foundation and rebar;High volume;Lower volume;20–30% cost savings
Heat loss;High;Low;Reduces heating costs by 35–45%
Fire safety;Moderate (finishes burn);None;Increased safety
Total construction cost;Standard;15–20% lower;Savings at every stage
🔹 Expanded clay blocks are an energy-efficient, eco-friendly, fire-resistant, and lightweight solution ideal for multi-story construction 🔹 They reduce construction costs by 15–20% and operating costs by 30–40% 🔹 Fully compliant with health, safety, and seismic standards
It is recommended to:
Use expanded clay blocks as a primary structural material in monolithic or framed designs
Select blocks based on certified data (GOST, test protocols)
Conduct testing for density, fire resistance, frost resistance, and ecological safety
CONCLUSION & RECOMMENDATION:
Apartment Buildings
Used in frame-monolithic construction for wall infill and partitions. Expanded clay blocks are commonly used in the construction of multi-story buildings. They serve as infill for floors and load-bearing partitions within monolithic or frame-based structures. Benefits:
Lightweight — does not overload the frame
Quick and easy installation
High sound and thermal insulation
Private Houses
Ideal for low-rise construction up to 3 floors without monolithic frames. Due to excellent insulation properties, expanded clay blocks are well-suited for individual home construction, including cottages, summer houses, townhouses, and utility buildings. Benefits:
Creates a comfortable indoor microclimate
Moisture- and frost-resistant
Durable and safe for human health
Garages
An affordable and reliable solution for fast garage construction. Expanded clay blocks allow for the rapid construction of garages. Their dimensions support quick wall assembly, and the material helps maintain indoor temperature. Benefits:
Low thermal conductivity
Fire resistance
Resistant to mold and mildew
Easy to cut and shape
Bathhouses and Saunas
A great choice due to high frost resistance and vapor permeability. These blocks retain heat well while allowing the structure to “breathe,” maintaining optimal humidity levels — ideal for bathhouses and sauna construction. Benefits:
Excellent heat retention and cold resistance
Resistant to temperature fluctuations
Do not emit harmful substances when heated
Easy to finish both inside and outside
Expanded clay blocks are versatile and reliable construction materials, widely used across various building types. Thanks to their strength, light weight, and thermal insulation, they are perfect for both residential and utility structures.
The PKC 80 lightweight partition hollow claydite concrete block is a durable and eco-friendly material designed for internal wall partitions. With dimensions of 390×80×188 mm and an approximate weight of 5.5 kg, it offers a strength grade of M35 and density D900.
Made from natural components — sand, cement, expanded clay (claydite), and water — this block is completely free from chemical additives, ensuring safety for both human health and the environment.
The PKC 80 block provides excellent sound and thermal insulation, improving energy efficiency and comfort within buildings. It can be easily installed using a standard sand-cement mortar, eliminating the need for expensive adhesives.
The PPKC 80 solid claydite concrete block is a high-strength, environmentally friendly material ideal for constructing reliable internal partitions. It offers a strength class of M50 and density D1300, ensuring durability and stability. Its dimensions are 390×80×188 mm, and it weighs approximately 8 kg.
Composed of natural materials — sand, cement, expanded clay, and water — it contains no harmful chemicals, making it safe for both users and the environment.
The block is easy to install using ordinary sand-cement mortar, helping to reduce costs on specialized adhesives.
Expanded Clay Block
90 шт
ГОСТ 33126-2014
0.38 Вт (м*с)
11 кг
390x190x188 мм
D800
М25
Hollow Wall Claydite Concrete Block (Two-Slot Type SKC 2)
The SKC 2 hollow wall claydite concrete block is a reliable and efficient solution for modern construction, offering high performance and durability. It features a strength grade of M25 and density D800, providing the perfect balance between strength and lightness.
With dimensions of 390×190×188 mm and a weight of about 11 kg, it is convenient to handle and accelerates construction time.
Produced from eco-friendly materials such as claydite, cement, sand, and water, the SKC 2 block is non-toxic and non-allergenic, ensuring a safe and healthy indoor environment.
It also provides high fire resistance, enhancing building safety. The smooth, even surface allows for easy finishing and improves the aesthetic quality of the final structure.
Expanded Clay Block
90 шт
ГОСТ 33126-2014
0.38 Вт (м*с)
16 кг
390x190x188 мм
D1150
М75
Hollow Wall Claydite Concrete Block (Three-Slot Type SKC 3)
The SKC 3 three-slot hollow claydite concrete block is a modern and practical solution for low-rise construction. It features a strength grade of M75 and density D1150, offering exceptional durability and long service life.
The block measures 390×190×188 mm and weighs approximately 16 kg, making it easy to transport and install.
Manufactured from environmentally clean materials, the SKC 3 block contains no harmful substances and is completely safe for people and the environment. It’s ideal for both residential and commercial buildings where reliability and sustainability are priorities.
Expanded Clay Block
90 шт
ГОСТ 33126-2014
0.38 Вт (м*с)
13 кг
390x190x188 мм
D900
М35
Hollow Wall Claydite Concrete Block (Four-Slot Type SKC 4 M35)
The SKC 4 M35 four-slot hollow claydite block is a reliable and practical solution widely used in low-rise construction. It has a strength grade of M35 and density D900, ensuring a perfect balance between lightweight structure and strength.
With dimensions of 390×190×188 mm and a weight of around 13 kg, this block is one of the most popular choices among both private builders and construction companies thanks to its excellent value for money.
Produced from eco-friendly raw materials without any toxic additives, the SKC 4 block is safe for human health and the environment.
Expanded Clay Block
60 шт
ГОСТ 33126-2014
0.38 Вт (м*с)
22 кг
390x300x188 мм
D900
М35
Hollow Wall Claydite Concrete Block (Six-Slot Type SKC 6)
The SKC 6 six-slot hollow wall claydite concrete block represents top quality and reliability in the construction industry. With a strength grade of M35 and density D900, it guarantees long-lasting durability and resistance to environmental impact. Its dimensions are 390×290×188 mm, and it weighs about 22 kg, making it ideal for structural and load-bearing walls.
The six-slot hollow design enhances handling convenience and reduces overall wall weight, while maintaining strength and insulation properties. Made entirely from natural, chemical-free materials, the SKC 6 block is safe for both users and the environment, promoting sustainable construction practices.
Expanded Clay Block
In-house production of claydite concrete blocks
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