Increasing brick body strength by adjusting the particle-size distribution

1 Context

The particle-size distribution of raw materials employed is one of the most important parameters with respect to workability, drying and firing behaviour and pore-structure formation within the brick body, which dictates most of the finished product properties. Until now, most investigations regarding the complex influence of particle-size distribution have been of an empirical nature – for example, by means of a Winkler diagram for the three size fractions 0–2, 2–20 and >20 µm. The present research project, however, pursues a new approach.

 

2 Objectives

The set objective was to imitate...

Related articles:

Issue 01/2022

Influence of mineral additives on the drying and sintering behaviour of brick bodies, Part 1

1. Introduction During shaping, the water serves as a sliding agent between the platelet-like clay minerals, rendering the clay plastic. Water is also responsible for the particles sticking to each...

more
Issue 02/2022

Influence of mineral additives on the drying and sintering behaviour of brick bodies, Part 2

5. Characterization of the dried brick bodies »Table 8 shows the shrinkage, packing density and bending strength of the dried brick bodies. The shrinkage of the basic bodies varies between 7.6 and...

more
Issue 6/2011

Enhancement of the hydrostatic capillary tension in wet brick green bodies for a reduced susceptibility to cracking during drying

1 Context and problem statement After shaping, brick green bodies exist as capillary-porous solids, the pores of which are filled with water and which are enclosed by a water sheath. Capillary suction...

more
Issue 05/2015 Dr.-Ing. Stefan Vogt

Methods of evaluation for raw material suitability and body optimization (Part 1)

1 Introduction For the evaluation of raw material suitability and the optimization of body compositions for heavy clay production, all matters concerning the following two topics must be clarified:...

more
Issue 05/2013

Energy-saving methods of conditioning ­green brick bodies for low-temperature drying

1 Context and formulation of problem Low-temperature drying is a modified form of open-air drying with the aid of modern plant and control technology. In heavy clay production, the introduction of...

more