Grinding behaviour of bricks –
results from laboratory and practice (Part 2)

Part 1 and 2 of this article provide an overview of the grinding of bricks and the influencing factors. The appropriate grinding tool depends on the characteristics of the brick. In practice, it is chosen by experienced testers and the choice is often an emotional one. So the idea was to carry out a preliminary systematic test in the laboratory regarding the machinability of fired raw material and to analyse the influence of the raw material and the firing temperature on the grinding of bricks. For this purpose, a test method was developed at the company Lingl. With the application of this method, the machinability of laboratory samples always produced under the same conditions is quantitatively determined and thus evaluated independently of the tester. First results of this method are listed here in part 2 and compared to results from the field.

3 Objective

To reduce the number of grinding tests as well as to enable the targeted pre-selection of tool and machine characteristics, a measuring method was to be developed to provide quantitative measuring data on the machinability of fired bodies, independently of the testing person.

Therefore, the primary target was to systematically determine the machinability properties of the fired body independently of size and shaping and, thereby, to determine the influence of the raw material and the firing temperature on the grinding behaviour. In addition to that, a substantial data collection is...

Related articles:

Issue 05/2014

Grinding behaviour of bricks – results from laboratory and practice (Part 1)

1 Introduction Laying bricks without mortar and joints places high demands on the characteristics of the contact surfaces. Bricks are therefore plane ground to compensate for any existing uneven areas...

more
Issue 11/2013

Grinding behaviour of clay bricks – results from the laboratory and field

For mortar- and joint-free building with bricks, the cut surfaces of the bricks must meet high requirements. To compensate for unevenness on the cut surfaces, the bricks are ground. Lingl has...

more
Issue 05/2013

Test methods for heavy clay ceramic raw materials: ceram-technological behaviour (secondary properties) – part 2

3 Ceram-technological behaviour (secondary properties) The primary properties of a clay or a batch result in a definite ceram-technological behaviour, which can be simulated under laboratory...

more
Issue 05/2015

Talleres Felipe Verdés opens new laboratory in Vilanova del Camí

The Spanish company Talleres Felipe Verdés is reinforcing its commitment to service and client-optimized solutions with the opening of new laboratory facilities. The event was attended by all the...

more
Issue 04/2021

Quality improvement of ceramic products by raw material and mass testing

There are many reasons why an operating mass in a brick factory needs to be adjusted. At some point, even the largest clay deposit is exhausted or the properties of the clay in the pit have changed to...

more