Our country has large cement factories supplying the whole range of high-strength Portland, metallurgical and special cements that are resistant to water attack.
These companies took an important part in the Exhibition. They were scattered, however, for the simple reason that each branch sought the best presentation formula.
In its magnificent pavilion, the Belgian cement industry's participation was complete. The large panel at the back, facing the entrance, recalled the importance of the Belgian cement industry, whose production capacity currently reaches 5 million tonnes per year and whose products are universally renowned for their quality. Moreover, Belgium is the largest exporter in the world (1/5 of world trade); a planisphere showed the countries that import Belgian cement.
The participation also included models, showcases and several schematic panels. The aim was to show the important role of water in all uses of cement.
A large tabletop model of a modern factory was placed in front of the back panel. A diagram made it easy to follow the manufacturing process of the different types of cement.
A large panel to the left of the entrance highlighted the role of water in the setting of cement. Samples and laboratory studies illustrated this. In a similar form, on the right, the influence of the amount of mixing water on the plasticity and strength of the concrete was diagrammed. It was also shown how the plasticity is adjusted depending on how the concrete is transported to the place of use and how it is placed.
A third panel was devoted to the influence of external moisture during curing. Here too, samples and laboratory tests completed the interesting demonstration of the variations in shrinkage and strength of concrete in wet and dry conditions.
The resistance to aggressive water was also the subject of a special exhibition proving that concretes made with the right care and the appropriate cements are perfectly resistant.
Finally, two large panels were devoted, one to major concrete works where water plays a role, the other to the standardisation of cements and their control in the laboratory. A display unit provided information on the standards and specifications of the cements manufactured by the Group: setting speed, stability, fineness of grind, tensile and compressive strength.
The participation of the Belgian Cement Association was one of the best private contributions to the Exhibition.
© General Report - International Water Technology Exhibition - Liège 1939