Asbestos-portland cement pipes with monoethanolamines, diethanolamines,and triethanolamines as quick-setting agents

Abstract

Abstract AN IMPROVEMENT IN THE FORMATION OF ASBESTOS-PORTLAND HYDRAULIC CEMENT PIPE BY MEANS OF THE COMMON WET-FORMING PROCEDURE W HEREIN THE INGREDIENTS OF THE PRODUCT, INCLUDING PORTLAND CEMENT AS THE BINDER PHASE, ARE COLLECTED IN THE FORM OF A THIN WET SHEET OF FURNISH FROM A DILUTE WATER SUSPENSION THEREOF, AND THE THIN WET SHEET OF FURNISH INGREDIENTS IS SUPERIMPOSED IN LAYERS UPON ITSELF INTO A LAMINATED BODY SUCH AS A SECTION OF PIPE BY CONVOLUTELY WINDING AND ACCUMULATING IT ABOUT ITSELF WHILE CONSOLIDATING THE SUPERIMPOSED LAYERS INTO AN INTEGRATED MASS; THE IMPROVEMENT CONSTITUTING REDUCING SLUMPING OR SAG IN NEWLY FORMED AND YET INCOMPLETELY HYDRATION SET PIPE PRODUCTS OF SUCH A WET-FORING PROCEDURE BY MEANS OF THE APPLICATION OF A MINOR AMOUNT OF AN AQUEOUS SOLUTION OF ALKANOL AMINE FROM THE GROUP OF MONOETHANOLAMINES, DIETHANOLAMINES, AND TRIETHANOLAMINES, TO THE THIN WET SHEET OF FURNISH INGREDIENTS CONTAINING PORTLAND CEMENT INTERMEDIATE ITS FORMATION BY COLLECTION OF THE FURNISH INGREDIENTS FROM THE AQUEOUS SUSPENSION AND ITS SUPERIMPOSITIONING INTO A LAMINATED BODY BY CONVOLUTE WINDING, ACCUMULATING AND CONSOLIDATING INTO AN INTEGRATED MASS.

Inventors

• 👤 Stephen Mark Quint

Bibliographic Details