Construction and coating materials

Claim 1

A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A MOIST INTIMATE ADMIXTURE OF A MAJOR PORTION OF DENSE CONCRETE AGGREGATE PARTICLES HAVING AN APPARENT DENSITY OF ABOVE ABOUT FIFTY POUNDS PER CUBIC FOOT AND A MINOR PORTION OF ABOUT 5% TO ABOUT 20% BY VOLUME OF THE TOTAL AGGREGATE OF A LOW DENSITY CONCRETE AGGREGATE HAVING AN APPARENT DENSITY OF LESS THAN ABOUT TWENTY POUNDS PER CUBIC FOOT, AT LEAST SAID DENSE PARTICLES BEARING A FIRST COATING-FILM OF AN AQUEOUS SOLUTION OF A SALT SELECTED FROM THE GROUP CONSISTING OF HYGROSCOPIC CALCIUM SALTS AND HYGROSCOPIC MAGNESIUM SALTS, AND AN OVERLYING DEPOSIT OF AN OIL-IN-WATER STABLE MIXING-TYPE BITUMINOUS EMULSION SUCH AS THAT PASSING ASTM D631-46 MIXING TEST, SAID DENSE AND SAID LIGHT WEIGHT AGGREGATES BEING OF A SIZE RANGE NORMALLY EMPLOYED WITH HYDRAULIC BINDERS AND WATER TO FORM MORTAR, SAID COMPOSITION BEING FURTHER CHARACTERIZED IN THAT IT IS AN ESSENTIALLY PARTICULATE AGGREGATE WHICH IS SUFFICIENTLY FREE-FLOWING TO BE POURED FROM CONTAINERS AND READILY MIXED WITH WATER AND A HYDRAULIC CEMENT BINDER TO FORM A MORTAR WHICH IS READILY POURED, SCREEDED AND TROWELED WITHOUT UNDUE LOSS OF VOLUME OR SEGREGATION OF COMPONENTS BEFORE SETTING TO FORM A RIGID STRUCTURE.