Edward P. Holub - Bethel CT Richard J. Grabowski - Milford CT
Assignee:
Construction Products Research, Inc. - Fairfield CT
International Classification:
C04B 702
US Classification:
106 89
Abstract:
The hardened volume change of concrete, grout, patching material, and water-proof material made from blends of Calcium Sulfate Hemihydrate, Portland Cement and Calcium Aluminate Cement can be reduced by using Portland Cement containing low levels of iron oxide. By lowering the normal level of iron oxide in the Portland Cement used in the above composition, it was also discovered that the compressive strengths dramatically increase as well as the bond to old concrete.
Bergen Street School Newark NJ 1944-1948, St. Columba School Newark NJ 1944-1952, St. Peter's Chapel School Newark NJ 1953-1955, St. Peter's Belmont Avenue School Newark NJ 1954-1956
Community:
Patricia Lytwyn, Alan Mitchell, Kathleen O'brien, Walter Kolpakov, William Myer, Geri Freyer, Augusta Scherer, Eleanor Wilsey, Jeannette Henig, Rosemarie Burkard, Mary Vitaliano
Oris Friesen, David Conway, James Lonowski, Conni Piesinger, Jerry Hubbard, Michael Fleming, Broderic Malta, Ronald Blow, Pat Rohs, Kathleen Brennan, Larry Nez