Show Concrete Curing Means Highways at Less Cost To TI save e labor and speed up the work a method of ot concrete curing has haa been Invented The chemical preparation preparation tion used Is a light dust dUK substance and andIs andIs andis Is applied by sifting It from n a hopper on the rear of a truck on which a supply sup ply of ot the material Is carried It absorbs absorbs ab aho sorbs moisture from the air and prevents prevents pre pre- vents drying out of the cement One man can ran treat a Iud lung long I stretch of of road In one on day One or two treatments treatment with the material each Earh season are said ald to be hI effective In laying the dust by binding together the particles that may have accumulated on gravel grovel or macadamized macadamized mac mac- roads road |