ARCILLA RESEARCH BINDER SYSTEMS AND TECHNOLOGY


ARCILLA RESEARCH BINDER SYSTEMS

AND TECHNOLOGY

 

 

CONDITIONS FOR USE     

Binder Systems Research and Technology by Arcilla Research /

Paul Rayar is licensed under a Creative Commons Attribution 3.0 Unported License. cc

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INTRODUCTION

At the Arcilla Research Center in the Netherlands, work on the bonding of fly ash, a residue from coal-burning power stations, led to the discovery of a mineral binder system for producing materials with ceramic-like properties without firing. Subsequent to studying fly ashes of many types and from many countries, research was carried out over a period of three decades on a large number of secondary and renewable resources. The result has been the creation of a ‘Family of Materials’ and technology aimed at combating Climate Change and Poverty. Arcilla believes that it is now the time to place the key information on its binder systems and related technology on its website and in the public domain.

 

ALPHA INORGANIC MICRO BINDER SYSTEM

        ALPHA is a two-component binder system based on a special type of alkaline sodium silicate and a catalytic hardener. Although hardening may be obtained by use of gentle heat, it was found that a hardener such as aluminum triphosphate, preferably in combination with heat was more effective. The grade of the binder employed is as follows:

Molar Module     Density in 20°C            Sum of oxides

+/- 0,1                  [g/cm3]                          Na2O+SiO2

[%min]

2.0                  1,50 – 1,53                   40.0

It should be noted that the silica particles are sub-micron. Prior to adding the hardener, it should be first dissolved in water of an equal amount by weight. To avoid pre-mature hardening of the mix, the hardener should be mixed in during the final stages.

 

 

BETA INORGANIC MICRO BINDER SYSTEM

        BETA is a two-component binder system based on a special  type of alkaline potassium silicate and a catalytic hardener. Although hardening may be obtained by use of gentle heat, it was found that a hardener such as aluminum triphosphate, preferably in combination with heat was more effective. The grade of the binder employed is as follows:

Molar Module Density in 20°C Viscosity in 20°C   Sum of oxides

+/- 0,1                  [g/cm3]                          (mPa.s[      Na2O+SiO2

[%min]

4.0              1,16 – 1,20                   3 -8                     18,26

It should be noted that the silica particles are sub-micron. Prior to adding the hardener, it should be first dissolved in water of an equal amount by weight. To avoid pre-mature hardening of the mix, the hardener should be mixed in during the final stages.

 

 

THE RENEW BINDER SYSTEM

        RENEW is a two-component binder system based on a neutral starch and zirconium acetate metal component. In the process, cross-linking takes place so that the dried material is water repellent. RENEW may be applied as a binder system to dense or foamed compositions or used simply as a surface coating.

 

 

FIBRE COMPOSITES

        ALPHA-bonded and RENEW treated fiber materials or composites developed by Arcilla Research have especially attractive properties such as high flexural strength, water repellency, high resistance to corrosion, heat, fire and impact (non-brittle).

 

 

BONDED WASTE GYPSUM

        A binder system for creating dense and open cell materials from waste gypsum has been developed. The extremely fine particle size of gypsum makes the use of fiber advantageous. One composition using cellulosic fiber from waste newspaper proved particularly effective. The reactivity of gypsum made it impossible to use the ALPHA binder since it would result in formation of a calcium silicate, with sensitivity to the same attacks as cement. It thus became necessary to develop a synthesized version of the ALPHA binder. The specimens thus developed were of two types: an ultra-dense material for use as interior wall paneling and an open cell material as acoustic ceiling tile.

THE METALLO-CERAMIC MATERIAL ‘CERAMETAL’

This ultra-dense metallo-ceramic material called ‘CERAMETAL’ is singled out for its special properties and applications: The material has all the virtues of metal, without, however, the principal flaw– oxidationorrusting. It is composed of 85% fine black iron oxide, aby-product from the steel industry, bonded by the ALPHA or BETA binder system.

 

CELLULOSIC FIBER FROM WASTE NEWSPAPER

Waste newspaper is saturated in a heated solution of a concentrated waste chemical, a by-product from the beverage industry. The fiber may be enhanced by surface treatment with the RENEW binder, making it water repellent and increasing resistance to heat and fire.

 

 

MICRO MINERAL POWDER FROM ORGANIC WASTE

A system of extracting micro mineral powder from organic waste was developed by Arcilla Research using horsetail grass as the first feedstock. The system used is anaerobic digestion, believed to have been created some three thousand years ago by the ancient Assyrians. It was found that pig manure processed by this method contained a mineral residue of some 30 % by weight. Many other waste materials rich in mineral content are tobacco leaf and waste tobacco, cattle manure and humanure.

 

 

 

THE RUBACON ADOBE SYSTEM OF MATERIALS AND HOUSING

RUBACON ADOBE Systems is a technology package of materials and techniques for improving the durability and other properties of earth and loam construction. Impregnation of compacted loam by the inorganic micro binder results in a water resistant material. Subsequent surface treatment by the RENEW binder makes for water repellence.

In addition, loam powder may be bonded with the RENEW binder to create dense and cellular materials, the latter as insulation.

 

 

THE RUBACON SYSTEM OF SAFE BUILDINGS AND HOUSING

The RUBACON ‘Do-It-Yourself’ shelter/house design is hexagonal in form and composed of lightweight panels that may be both made and installed by women and older children. The system will be energy autonomous and resistant to earthquake and the elements – hurricane, fire and flood.

To achieve this goal, it is planned to create a presence in countries worldwide byestablishing a RUBACON Centre. The Center will serve to transfer the technology to the economically-deprived people of the target country by providing skills training that will lead to their setting up SMEs for the production of useful materials and products. The SMEs will operate under a system of franchise with funding coming from Microfinance/Microcredit organizations.