Dipl.-Ing. Eckhard Rimpel

Syngas for sustainable clay brick and roofing tile ­production (Part 2)

A small-scale test was conducted at a high-temperature gasification facility to determine whether syngas can be used in the firing of clay bricks and roofing tiles. As the quality and colour of these products depend on different factors, the influence of the changed gas properties on the properties of different end-products was investigated in Part 1. This part will focus on the influence of the atmosphere on the colours and the legal aspects of the production and combustion of syngas.

6 Influence of the atmosphere on the colours

With the naked eye it was not possible to see any differences in the colour of all the products. Most important are the colour differences in roofing tiles. Because of this a colorimeter was used.

6.1 Test description

The used colorimeter measures a Lab colour space, which is a colour-opponent space with dimension “L” for lightness and “a” and “b” for the colour-opponent dimensions, based on nonlinearly compressed coordinates. The L*a*b* colour space includes all perceivable colours, which means that its colour gamut exceeds those of the RGB and CMYK...

Related articles:

Issue 2013-11

Integrative Children’s Day-Care Centre in Bad Nenndorf

Both the childcare concept and the architecture of the Integrative Children’s Day-Care Centre in Bad Nenndorf impress with their originality and sustainability. While the façade and roof constructed...

Issue 2019-1 Laumans

Diverse and trendy

Visitors to Bau were able to discover all six roofing tile models in the range of almost the entire spectrum of colours available. Attention focussed on the trend glazes #40 black satin-finish and...

Issue 2014-08

Natural fired colours of raw materials for bricks and tiles

The fired colours of heavy clay bodies are largely determined by the employed raw materials, the lighting conditions and the viewer‘s visual perception. The term fired product colour indicates that...

ArGeTon enables creative colour and surface design: Engobes and glazes extend the colour spectrum

New colour palette without limits

The ArGeTon GmbH presented - for the first time and at the Bau 2009 in Munich – a colour palette which is based on the diversity of the RAL colour palette. The colours used in it are, in this...

Issue 2022-03

New products spring 2022

A breath of fresh air in Randers Tegl‘s product portfolio: a total of five new brick varieties will be added to the range, according to a company statement. The Special Colours series will receive...