Ключевые слова:
Surface defects|Shear testing|Straight couplings|Glass fibres|Drainpipes|Bend couplings|Sewers|Cements|Pipe fittings|Accelerated testing|Aggregates|Straightness measurement|Ignition-loss tests|Ageing tests|Deflection tests|Inspection|Precast concrete|Pipes|Crushing tests|Thickness|Roving (fibre)|Pipe couplings|Alkali-resistance tests|Pipe junctions|Cylindrical shape|Size|Diameter|Marking|Culverts|Hydraulic tests|Reinforced concrete|Concretes|Rebated joints|Water-absorption tests