Geocement. New generation hightech material

2017-01-21

 

ABOUT GEOCEMENT

Specialists of Geobeton company have carried out research works on creating recipes in the company’s research laboratory for more than five years. Our work was based on experience of Kiev Institution of Civil Engineering, founder of this technology in USSR, and in cooperation with Geopolymer Institute in France, it’s founder professor Joseph Davidovits has introduced the term «geopolymer». We have also united our efforts with our Italian colleagues.

Geocement is supplied in two-component version: Geopolymer cement in powder form and a liquid reagent — Geosilicate. They can be mixed on construction site in the same way as ordinary portland cement with aggregates (sand and gravel). Moreover we can offer geopolymer concrete, that is supplied in bags and is already mixed in proper proportions to produce concrete. In this case Geobeton is also prepared by mixing dry component and liquid reagent — Geosilicate. You can get more detailed information on technology in product description.

TECHNOLOGY

Technology of geopolymer concrete is based on idea of applying inorganic mineral substances the production of which does not require the additional use of natural resources and does not lead to C02 emissions into the atmosphere (byproducts of metallurgical, electrometallurgical industries and power plants).

Geobeton is chemically inert to a range of aggressive substances, it is sturdy both to high temperatures and severe climates. Thanks to excellent physical-chemical properties geobeton can be widely used in construction. In comparison with traditional concrete production technology based on portlandcement, geobeton has better results in strength, durability, freeze-thaw resistance, fire resistance, heat insulation, corrosion and aggressive substance resistance including some types of acids.

As a result, the use of geobeton improves general ecological situation by reducing C02 emissions by up to 90% and recycling industrial byproducts. Their properties enable their implementation in the spheres with specific requirements towards concrete.

TECHNICAL SPECIFICATIONS

Geobeton exceeds the properties of natural stone.

Geopolymer nano-structure and a high level of mesoporosity let the air pass through the material and this gives the following properties to the concrete:
insulation;

  • resistance to thermal shock;
  • high level of freeze-thaw resistance;
  • fire resistance;
  • thixotropy;
  • flowability;
  • adjustable setting time (from 0 to 180 minutes);
  • constantly high strength (compressive strength over 100 MPa; flexural strength over 13 MPa);
  • resistance to corrosion;
  • resistance to alkalies, salts and acids.
 

MAIN PROPERTIES

CHEMICAL RESISTANCE

high resistance to various acids and aggressive substances, and high sulphur resistance due to the absence of calcium compounds in the structure

FIRE RESISTANCE

unlike ordinary portland cement based concretes, water in geopolymer concretes is present on molecular level in not bound state and if heated it easily evaporates and does not explode the concrete from inside

 

FAST STRENGTH DEVELOPMENT

geopolymer concrete develops about 50% of it’s strength in the first three days, this increases the construction speed

THERMAL RESISTANCE

geopolymer concrete is resistant both to high temperatures over 10000C and to low temperatures due to high level of freeze-thaw resistance

 

THERMAL INSULATION PROPERTIES

by using high quality aggregates and geobeton one can create thermal insulation materials and plasters

HIGH STRENGTH

high resistance to various acids and aggressive substances, and high sulphur resistance due to the absence of calcium compounds in the structure

 

ADVANTAGESE

SUSTAINABILITY

in the process of geopolymer cement production the CO2 emissions are reduced by 90%

HIGH EFFICIENCY

high level of physicalmechanical properties and durability, higher compressive strength and axial tension strength, freeze-thaw resistance, water impermeability and resistance to abrasion

UTILIZATION OF BY-PRODUCTS

рossibility of utilizing wastes and byproducts of existing industries

COST EFFECTIVENESS

to achieve special properties no additives or modifiers are needed, due to fast strength development the speed of the project implementation increases

 

ENVIRONMENTAL IMPACT

The traditional Portland cement industry is the second largest producer of C02 globally.

With the population growth and corresponding increasing demand in concretes and cements, ecological aspects become a major concern of the generation.

Introduction of the geopolymer technology in the production of concrete and cement gives the following environmental benefits in comparison with traditional portland cement production:

  • reducing C02 emissions up to 90% in production process;
  • a minimum 60% less impact on the environment as a result of the extraction of raw materials;
  • use of wastes and by-products of the existing industries.
 

SUSTAINABILITY

Geocement is a material of the future that reduces the global warming iimpact by reducing C02 emissions int the atmosphere due to eco-friendly production process and the use of various industrial wastes. This make Geocement a sustainable green product.

Global warming and environmental protection has become major concern for the world which is due to carbon dioxide (C02) emission to the atmosphere by human activities.

The environment must be protected by preventing dumping of waste and by-product materials in uncontrolled manners and by significantly decreasing Carbon dioxide (C02) emissions. Interest towards green and sustainable building has grown in Russia in recent years.

There is a special certification system in Europe in the sphere of green and sustainable construction (LEED certification or «carbon credits»).

Application of Geocement in construction completely corresponds to this certification system and gives an ability to gain additional points. Buildings constructed with Geocement produced by Geobeton company would earn additional LEED points compared to conventional construction materials.

GREEN BUILDING

Green building brings together a vast array of practices, techniques, and skills to reduce and ultimately eliminate the impacts of buildings on the environment and human health. It often emphasizes taking advantage of renewable resources, e.g., using sunlight through passive solar, active solar, and photovoltaic equipment, and using plants and trees through green roofs, rain gardens, and reduction of rainwater run-off. Many other techniques are used, such as using low-impact building materials or using packed gravel or permeable concrete instead of conventional concrete or asphalt to enhance replenishment of ground water.

A green building is one which uses less water, optimizes energy efficiency, conserves natural resources, generates less waste and provides healthier spaces for occupants, as compared to a conventional building. Considering the tremendous benefits that it offers, green building concept is gaining major importance in the world. By adopting Green methodologies we would be able to reduce the carbon footprint and would be helping the environment.

Construction industry is one of the major consumers of natural resources such as cement, sand, rocks, clays and other fossils. The ever increasing unit cost of usual ingredients of concrete have forced the construction engineers to think of ways and means of reducing the unit cost of its production. At the same time, increased industrial activity in the core sectors like energy, steel and transportation has been responsible for the production of large amounts of by-products such as fly ash, blast furnace slag, silica fume and quarry dust with consequent disposal problem.

Geopolymer technology completely corresponds to the concept of green building by optimizing energy efficiency of the buildings, preserving natural resources and at the same time utilizing the by-products of other industries, thus decreasing the C02 emissions by up to 90%.

APPLICATION

Geocement can be applied as a component for various products with a wide range of applications in different industries.

Examples of industries where products based on geopolymer cement can be applied:

  • general construction
  • earth quake proof construction
    and buildings
  • concrete blocks
  • road construction
  • concrete pavements
  • eco friendly green building
  • concrete floors
  • high-strength fiber-concretes
  • containers and tanks for various liquids
  • pre-cast concrete
  • bridge constructions
  • railroad slippers
  • modular houses
  • 3D-printing
  • sewer systems
  • various infrastructural projects fire-proof systems
  • radioactive substances contain ment / encapsulation systems
  • marine structures
  • piles, foundations and other subterrain structures
  • petrochemical constructions
  • architectural constructions
  • design, architecture and decoration
  • countertops, panels and other concrete goods
  • thermal insulation materials
 

3D GEOBETON

Together with the introduction of 3D-printing technology in construction, geopolymer binders and geobetons on their base make a new step in development.

FAST

about 100 m2 of accommodation in 24 hours

COST EFFECTIVE

no waste, faster construction period

SUSTAINABLE

due to the use of industrial by-products CO2 emissions are reduced by up to 90% in comparison with the traditional technology

 
 

FUTURE IS NOW

in Irkutsk for the first time in Russia successful tests of geobeton (geopolymer concrete) were made in printing constructions on the mobile 3D-printer. A Russian-Italian company Renca Rus, LLC has elaborated and tested various compositions of geobeton based on geopolymer binder for the technology of 3D-printing on mobile construction printer of the company Apis Cor.

This experience is unique. Both technologies are at the start of conquering the construction market, but the representatives of both companies believe that the future is in fast and eco-friendly construction.

The tests have shown a high efficiency of geobeton. Due to its specific composition an ideal for 3D printing consistency of the mixture was reached. This shortens the time of construction — the houses can be built within hours.

 

The elaborated formula of geobeton is the most suitable for the technology of 3D printing due to a higher thixotropy, fluidity and an ability to adjust the setting time, with a constantly high mechanical strength (compressive strength reaches 100 MPa and more). Moreover geobeton is cost-efficient eco-friendly material thanks to the use of industrial byproducts.

Engineers of the company Renca Rus plan to modify compositions of the mixtures to adjust them both for the hot climate and severely cold temperatures, as well as to create the mixtures on the base of various local raw materials in the regions of Russia and worldwide to optimise the cost and properties of geobeton and to enable its efficient implementation with the mobile construction 3D printer of Apis Cor.

 

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