Self-supporting composite slabs with natural stone surface - are prepd. by bonding together with adhesive supporting slab of shapable hardenable material, partic. concrete, and natural stone slab

摘要

The composite slabs (I) are made by (1) preparing supporting slab (10) with defined surfaces and edges of shapable, hardenable material; (2) preparing natural stone slab by splitting, sawing or milling; (3) applying layer of adhesive (14) on a surface of the supporting slab and/or of the natural stone slab; (4) joining together, at surfaces to be bonded together, the supporting slab and at least one natural stone slab; and (5) hardening the adhesive layer. Pref. supporting slab is of cured concrete. Supporting slab is 5-20 cm thick and natural stone slab is 1-4 cm thick. Natural stone slab and supporting slab have same outline. 2-component adhesive based on epoxide resin is used. Filler, partic. quartz sand, is added to adhesive. Adhesive layer is 0.0005-0.003m thick. USE/ADVANTAGE - Paving pedestrian zones and traffic-quietened areas. (I) are prepd. simply and economically, with reduced thickness compared with conventional composite natural stone slabs, and have high strength and long term durability.