Eric Dananche

Title: Innovations by Eric Dananche in Cementitious Materials

Introduction

Eric Dananche, an innovative inventor based in Courlaoux, France, has made significant contributions to the field of construction through his patents. With a total of two patents, Dananche focuses on improving the properties and usability of cementitious materials, particularly in creating exposed aggregate finishes.

Latest Patents

Dananche's most recent inventions include:

1. **Composition and Method for Obtaining Exposed Aggregates in Surfaces of Moulded Concrete**

This patent describes a surface retarder coating composition that utilizes a non-Ordinary Portland Cement (non-OPC) binder alongside Ordinary Portland Cement (OPC) set retarder agents. The innovative aspect of this invention is the convenience it offers by being in powder form, allowing it to be mixed with water directly on construction sites. The coating can be applied using roller or spray equipment, enabling concrete to be cast within 30-60 minutes. The set-retarding agent ensures that the concrete can be demoulded the next day, and high-pressure water can then remove the surface layer to expose the aggregate beneath.

2. **High Curing Inducing Surface Applied Setting Retarder**

This patent details methods and compositions designed to retard the setting of hydratable cementitious compositions. It involves the use of a non-bituminous cationic emulsion that contains curing compounds, including acrylic polymers and paraffins, to prevent water evaporation. This invention is complemented by set retarders and cationic surfactants, further enhancing the curing process.

Career Highlights

Throughout his career, Dananche has been associated with reputable companies such as GCP Applied Technologies Inc. and W.R. Grace & Co. – Conn., where he has applied his knowledge and expertise in developing innovative solutions for the construction industry.

Collaborations

Eric Dananche has worked closely with distinguished colleagues, including Dany Vincent and Ara A. Jeknavorian. Their collaborative efforts have contributed to advancements in cementitious material technologies and have solidified their collective impact on the industry.

Conclusion

As an inventor, Eric Dananche has demonstrated a profound understanding of cementitious materials through his innovative patents. His work not only enhances the efficiency of construction practices but also promotes the aesthetic aspects of concrete applications. With his continuous efforts and collaborations, Dananche remains a significant figure in the realm of construction innovations.