Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability

Inactive Publication Date: 2002-04-16
SUPPLEE WILLIAM W
View PDF35 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

is to achieve an ultimate result of reduced efflorescence during and after curing of cement-type concreations against one or more of repetitive heat and freeze-thaw conditions and prolonged and/or repetiti

Problems solved by technology

While efforts to improve durability and reduction of efflorescence (powdering resulting from water-loss) have been made in the prior art by the utilization of compositions designated efflorescence control agents (often designated ECA), it is well known that the inclusion of such ECA--typically calcium stearate alone in concrete formulations, often results in "reduced" durability of the resulting the final cured product.
Moreover, recent testing completed by the NCMA and Control testing laboratories show that the use of sealers is ineffective in reducing efflorescence and/or improving durability of concrete products.
Despite the many prior and conflicting attempts of prior art artisans to attain combined both durability and efflorescence control (suppress

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability
  • Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability
  • Additive for, method of adding thereof and resulting cured cement-type concreations for improved heat and freeze-thaw durability

Examples

Experimental program
Comparison scheme
Effect test

example 1

This example is directed to a composition and procedure relating to durability of a concrete segmental retaining wall unit.

To a laboratory batching kitchen aid mixer, 150 grams, of normal type 1 cement was added. In addition, 1350 grams of stone and sand fitted to any optimized aggregate blend curve for a typical retaining wall with an FM of 3.70 was added. In addition, a red iron oxide pigment was added at 3.0% based on the weight of cement (4.5 grams). The cement, aggregate and pigment were blended for two minutes. Sixty grams of water was added sufficient to attain a water to cement ratio of 0.40. The material was then blended for an additional 90 seconds. At that point, 2.45 grams (25 ounces per hundred weight of cement equivalent) of the efflorescence control agent and polymer blend were added to the mix. The efflorescence control agent(s) (ECA) represents 35% by weight and the polymer blend represents 65% by weight. The ECA was a modified calcium stearate. The polymer blend in...

example 2

For the same categories as aforenoted example, comparing compressive strength (as psi) versus different temperatures in a series of different comparisons, FIG. 4 likewise exhibits marked superior performances as regards compressive strength for each comparison. FIG. 5 likewise exhibits marked superior performance in permeability, as regards centimeter(s) (cm) per hour for each comparison.

example 3

For the same categories as aforenoted Example 1, but here on a full scale basis for a production series of units manufactured in an Allen Block Segmental Retaining Wall style, the illustrated results of FIGS. 6, 7 and 8 confirm tests comparable to Example 1 and FIGS. 1 through 3, confirming marked superiority in all categories.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Temperatureaaaaaaaaaa
Temperatureaaaaaaaaaa
Temperatureaaaaaaaaaa
Login to view more

Abstract

An additive for, a method of adding thereof to uncured mixes for and resulting cured cement-type concreations such as cured embodiments of concrete, marcadam, and roof-top shingles each exhibiting improved heat and freeze-thaw durability resulting from reduced efflorescence and stability against sun ultraviolet light exposure.

Description

PRIOR ARTPrior art patents include U.S. Pat. No. 3,645,763 issued Feb. 29, 1972 to Anathony R. Ronzio et. al., U.S. Pat. No. 3,895,953 issued Jul. 22, 1975 to Povindar K. Mehta et al., U.S. Pat. No. 4,268,316 issued May 19, 1981 to Milton H. Wills, Jr., U.S. Pat. No. 4,434,193 issued Feb. 28, 1984 to Thomas Beckenhauer, U.S. Pat. No. 4,983,220 issued Jan. 8, 1991 to Alain Mathieu, U.S. Pat. No. 4,999,218 issued Mar. 12, 1991 to Gerd Rebner, et al., U.S. Pat. No. 5,460,648 issued Oct. 24, 1995 to Craig T. Walloch et al., U.S. Pat. No. 5,494,741 issued Feb. 27, 1996 to Frank Fekete, U.S. Pat. No. 5,531,824 issued Jul. 2, 1996 to J. Pate Burkes et al., U.S. Pat. No. 5,595,594 issued Jul. 21, 1997 to Jier-Yi Dong et al.BACKGROUND & OBJECTSIn the relevant trade heretofore up to the time of the present invention, it became apparent to those skilled in the art that preexisting cured cements, .[.marcadam.]. .Iadd.macadam .Iaddend.and roof-top shingles prior to the present invention each and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B16/04C04B16/00C04B28/02C04B28/00
CPCC04B28/02C04B16/04C04B2103/605C04B2111/21C04B2111/29Y10T428/31823Y10T428/31993
Inventor SUPPLEE, WILLIAM W.
Owner SUPPLEE WILLIAM W
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap