Keywords:
Chemical composition, Slots, Crushing tests, Grades (quality), Mechanical testing, Reinforced materials, Quality control, Thickness, Stiffness, Underground, Prefabricated parts, Sampling methods, Reinforced concrete, Strength of materials, Joints, Testing conditions, Marking, Slabs, Surface boxes, Glass fibres, Holes, Dimensions, Construction systems parts, Deflection tests, Loading, Plastics