Oxacrete

Oxara

Oxacrete is an additive used to make cement-free concrete.

Snapshot
Manufacturing & delivery
Performance & use
Research & standards
Feedback

Product description Brand name and product description

Oxacrete is a mineral-based chemical and non-toxic additive made by Oxara, a Swiss based start-up, which can be mixed with excavation waste and/or sludge to product cement-free concrete. Oxacrete can improve the workability of the earth mixture for processing and casting, which can be 1-3 days. As of October 2019, Oxara AG incorporated and looking for business developers, industry partners and customers. The proof of concepts was implemented in Rwanda and Portugal and industrial demonstration was adopted by a Swiss recycling company, Kibag.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Worldwide

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Kibag

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

Unknown

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Geopolymer concrete brick

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 11: Sustainable cities and communities

Target user(s) Target user/consumer base (country, income segment)

Any person, community, or organization that needs to construct a structure using cement-free concrete

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Oxacrete is mixed with excavation materials and/or sludge in conventional concrete infrastructure to produce cement-free concrete, which has been found to reduce carbon dioxide emission by 90% compared to conventional concrete.

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Trademarked

User Provision Model Where can the product be purchased/acquired by end users?

Oxara is for business developers, industry partners and customers.

Distribution to date Number of units that have been deployed, downloads or users to date

Industrial demonstration adopted by a Swiss recycling company, Kibag.

The proof of concepts were implemented in Rwanda and Portugal.

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Self-supported structure? (yes/no)

Indication if an entire structure be built with this system alone (floors, walls and roof)

Yes

Primary material

Main material composition

Soil, rock, and sand

Compressive strength (MPa)

Measured in MegaPascals

Unknown

Lateral load (MPa)

Measured in MegaPascals

Unknown

Complementary equipment

A list of additional equipment needed for construction/fabrication

Standard brick making machines

Max. number of storeys (#)

Ground floor only = 1, Ground floor + 1 floor = 2, etc.

N/A

Thermal insulating capacity (m²*K/W)

Composite estimated R-value

Suitable climates

List of suitable climates for use of this components

All climates

Method complexity

How hard to learn?

Mix excavation earth materials with Oxacrete without the need for special tools

Training programs

Any educational programs available to learn this method of building

N/A

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Excavation earth materials are mixed with Oxara’s patented geopolymer to form bricks using standard brick making machines.

Product schematics Design and assembly illustrations

Technical support Technical support provided by

Unknown

Replacement components Availability of replacement components (in-country, by order,...)

None

Lifecycle Disposal and warranty

100+ years

Manufacturer specified performance targets Designer / Manufacturer specified targets

90% CO₂ reduction and cost reduction compared to conventional concrete, improved workability, cement-free concrete

Vetted performance Findings of manufacturer evaluations or independent testing centers

Unknown

Testing organizations Independent lab, academic research centers, etc.

Unknown

Safety Potential hazards / risks related to operation of this product

No known safety hazards are related to this product.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Standard brick production machine

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Minas, C., Carpenter, J., Freitag, J., Landrou, G., Tervoort, E., Habert, G. and Studart, A.R., 2019, Foaming of recyclable clays into energy-efficient low-cost thermal insulators, ACS Sustainable Chemistry & Engineering, 7(18), pp.15597-15606

Landrou, G., Brumaud, C., Plötze, M.L., Winnefeld, F. and Habert, G., 2018, A fresh look at dense clay paste: Deflocculation and thixotropy mechanisms, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 539, pp.252-260.

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Unknown

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Unknown

Other information

A cement-free concrete invented in Zurich by Oxara

Oxara AG – Winner W.A. de Vigier Award 2020

oxara – Sustainable concrete

Live on air interviews with Start-ups Sevensense Robotics, Oxara and Membrasenz

In context photographs (0)

You can use the form below to contribute a photo of this product.

In context files & documents (0)

Feedback from users, customers & distributors

Please let us know your experience in using this product through comments below.

Snapshot

Product description Brand name and product description

Target region(s) Target region for distribution/implementation (listed by country if specified)

Worldwide

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

Kibag

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

Unknown

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Geopolymer concrete brick

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 11: Sustainable cities and communities

Target user(s) Target user/consumer base (country, income segment)

Any person, community, or organization that needs to construct a structure using cement-free concrete

Manufacturing & delivery

Manufacturing/building method(s) Detail regarding solution production or construction method (instructions, mass production capacity, custom made,etc...)

Product Intellectual Property Open source/IP protected (note patent)/trade secret/other?

Trademarked

User Provision Model Where can the product be purchased/acquired by end users?

Oxara is for business developers, industry partners and customers.

Distribution to date Number of units that have been deployed, downloads or users to date

Industrial demonstration adopted by a Swiss recycling company, Kibag.

The proof of concepts were implemented in Rwanda and Portugal.

Performance & use

Fields marked are sourced values that have been evaluated by the manufacturer or a third party, all others are design specifications.

Self-supported structure? (yes/no)

Indication if an entire structure be built with this system alone (floors, walls and roof)

Yes

Primary material

Main material composition

Soil, rock, and sand

Compressive strength (MPa)

Measured in MegaPascals

Unknown

Lateral load (MPa)

Measured in MegaPascals

Unknown

Complementary equipment

A list of additional equipment needed for construction/fabrication

Standard brick making machines

Max. number of storeys (#)

Ground floor only = 1, Ground floor + 1 floor = 2, etc.

N/A

Thermal insulating capacity (m²*K/W)

Composite estimated R-value

Suitable climates

List of suitable climates for use of this components

All climates

Method complexity

How hard to learn?

Mix excavation earth materials with Oxacrete without the need for special tools

Training programs

Any educational programs available to learn this method of building

N/A

Design specifications Component and Operation overview including power, portability, facility requirements, preventative maintenance and user training requirements

Excavation earth materials are mixed with Oxara’s patented geopolymer to form bricks using standard brick making machines.

Product schematics Design and assembly illustrations

Technical support Technical support provided by

Unknown

Replacement components Availability of replacement components (in-country, by order,...)

None

Lifecycle Disposal and warranty

100+ years

Manufacturer specified performance targets Designer / Manufacturer specified targets

90% CO₂ reduction and cost reduction compared to conventional concrete, improved workability, cement-free concrete

Vetted performance Findings of manufacturer evaluations or independent testing centers

Unknown

Testing organizations Independent lab, academic research centers, etc.

Unknown

Safety Potential hazards / risks related to operation of this product

No known safety hazards are related to this product.

Complementary technical systems Performance of this product is improved with another technology (eg. Cookstoves and Wind-blocking skirts)

Standard brick production machine

Research & standards

Academic research Academic research related to the product (e.g. published papers in peer-reviewed journals)

Compliance with regulations Product certifications and standards referenced by designer/manufacturer

Unknown

Evaluation methods Evaluation methods/protocols/guidelines referenced by designer or manufacturer.

Unknown

Other information

A cement-free concrete invented in Zurich by Oxara

Oxara AG – Winner W.A. de Vigier Award 2020

oxara – Sustainable concrete

Live on air interviews with Start-ups Sevensense Robotics, Oxara and Membrasenz

Feedback

In context photographs (0)

You can use the form below to contribute a photo of this product.

In context files & documents (0)

Feedback from users, customers & distributors

Please let us know your experience in using this product through comments below.

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In context photographs (0)

In context files & documents (0)

Feedback from users, customers & distributors