Evaluation of Resource Efficiency on the Use of Natural Stone Powder in Silicate Ceramic Bodies – Part 2

»2 Development of the body properties with variation of the percentage of S2 added to Clay A (gradient firing: ΔT = 200 K, preheating rate 2 K/min)

The issue of energy saving is of major importance for the ceramics industry. In addition, analysis of the respective resource consumption is shifting increasingly into the focus of interest [1, 2]. Sensible utilization of industrial waste in ceramic bodies in energy, economic and ecological terms requires knowledge of the energy and raw material consumption as well as the CO₂ emissions for the manufacture of ceramic products. From this, potential savings for the use of secondary raw materials as well as for an efficient use of resources can be derived.

5 Evaluation of resource efficiency based on the example of the use of diabase flour for clinker production

5.1 Changed process chains and data collection

5.1.1 Body components

For the production of clinkers, primarily kaolinitic clays are used. Characteristic parameters of the clay used (Clay A) are listed in »Table 3.

The diabase flour S2, is produced as undersize during rock extraction for aggregate production (for concrete/asphalt, base courses in road construction, chippings, sand and ballast). Characteristic values are also detailed in »Table 3. For the calculations performed as part of this...

Issue 2012-11

Turning mining residue into raw material for bricks and tiles – part II: rock flour and crusher dust from natural stone processing

On February 29, 2012, the German federal cabinet enacted the countrys new resource efficiency program (ProgRess). Due to its enormous consumption of resources, the construction sector is a relevant...

Issue 2010-04

Evaluation of Resource Efficiency on the Use of Natural Stone Powder in Silicate Ceramics Bodies – Part 1

1 Introduction The use of secondary (waste-derived) raw materials in ceramic bodies has been studied numerous times in the past. Secondary raw materials are waste materials from other industrial...

Issue 2021-04

Raw material enthalpy of heavy clay raw materials (Part 1)

1 Introduction Energy savings and the associated cost reductions are a key issue in the clay brick and roofing tile industry. It is known that the enthalpy of the heavy clay raw materials to be fired...

Issue 2013-10

Resource efficiency in the clay brick and tile industry Part VII: Ferruginous clay from diabase extraction

1 Geological background and site Since 1952 diabase has been extracted at Huneberg Quarry and processed to high-quality aggregate and building materials mixes for traffic route engineering. The quarry...

Issue 2023-05

Far-reaching transformation in the raw materials sector – What could new raw material concepts for the clay brick and tile industry look like?

The raw materials sector is undergoing far-reaching transformation. This has impacted the clay brick and tile industry, too. A diversification of its raw material base has become more important than...