Technologies alternatives pour construire un futur plus responsable.

HP2A Technologies

Discover the HP2A Technologies film



Avoiding Cement and marine sands
in the building industry
is now possible with the HP2A patent.

Why should we create a new construction material ?

The building sector is guilty of 20% of the world’s CO2 emissions and draining marine sand resources causing 90% of the world’s shores disappearance.
The fabrication of Portland cement, used in 80% of the world’s construction industry, produces pollutants responsible for global warming and acid rains.
The HP2A technology, a Portland cement alternative, prevents from using marine sand and fulfils tomorrow’s building requirements: economically realistic green building supplies allowing to reduce the world’s carbon footprint.

Who came up with this technology ?

The HP2A project was born when David Hoffmann, a scientist specialized for more than 20 years in mineral binder’s chemistry and Julien Blanchard director of Argilus, a major representative in the French eco-construction market decided to join forces.
A Patent was registered at the INPI in 2015

Challenges of Technological breakthrough

The HP2A technology is a major innovation, a technological breakthrough representing an outstanding opportunity for the required economic mutation needed for the world bioclimatic challenges.

Media, Industrial and financial Targets

The HP2A technology is dedicated to the world and as such deserves an outstanding media coverage well beyond simple business purposes :
To both enhance the range of green technologies arising from the HP2A on the marketplace and most importantly to allow major actors such as States and major construction companies to benefit as soon as possible of the stemming opportunities.
The whole process and costs to validate and protect the HP2A technology were financed by privately owned capitals.


French innovation exists but it needs funding and economical partners able to turn a start-up into a national industrial flagship.
To really change the world, the HP2A technology counts on the support of French public authorities and a few daring industrial partners.


1 patent for numerous applications for sustainable building

HP2A ® stands for « High Performances Alcaline Activation » as this technology is based on the Alkaline Activation physical properties and Geopolymer. Clay is naturally created from stone. HP2A rewinds timeline by recreating a stone from clay. The molecular reaction is natural and does not imply any petrochemical agent.
Unlike Portland cement, based on crystallization, the reactions in the HP2A technology creates covalent bonding which a much higher internal strength.
The HP2A technology is a natural cold reaction that does not need combustion or any energy to be produced.
HP2A Technology does not need marine sands and works with mineral aggregates like rock sand or desert sand. It can also use recycled raw materials such as glass or plant aggregates.
HP2A technology is done by ambient temperature, from 0°C, and without combustion, and so offers large economical savings from the beginning of the materials production.