If bricks have to satisfy an official standard, they will probably have to be tested in a laboratory. These tests will need to be repeated periodically to maintain quality control. Tests normally specify the sizes for bricks and the acceptable compressive strength - how much weight they can bear before crushing. For certain uses, such as damp-proof courses, water absorption or suction rate may also be specified.
The Center offers a range of services related to raw material evaluations and material processing which include: · Crushing and sizing of small batches · Lab extrusions · Evaluations of Green Strength, Plasticity, and Dry Strength · Evaluations of additives (deflocculates, binders, recycled material, glass, etc.) · Drying Behavior Firing Behavior (development or optimization of firing curves). Please call to discuss your particular project. Conclusion
These guidelines will help field-workers judge the quality of bricks. Furthermore, if the information presented is used as a basis by those working with brick makers, it will go some way to establishing an agreed approach to assessing the technical problems they face and proposing appropriate solutions. That is, solutions which make the best use of available resources: are affordable, manageable, cost effective, and ultimately successful.