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Show Medal foe Paving Blocks. An ad vauce lu road patui lor which a Prltlah engineering firm has bfen awarded a bronze medsl by tha Royal Sanitary Institute should be of more than ordinary Importance Clinker residue from tha collection ar.d burning of bouse refuse Is used for the paving blocks, and by special machinery Is ground, thoroughly mixed with oil and Trinidad asphalt and then pressed Into blocks I by 4 I 2 by 2 Inches la size, each weighing about ten pounds. At the destructor works at Kensington more than five hundred blocks an hour are made. Tbey are passed directly through a water cooling process, and are then ready for Immediate laying. 8ome of the blocks under test have been laid over four years. They bave not only provided an exceedingly durable and noiseless pavement but It Is claimed that they ara aacitary and take little scavenging; that they do not become allppery. and that they ara not la any j way ejected by rain, frost, sunshine or other ordinary eondMous. |