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Title: Ultrafine cementitious grout

Abstract

An ultrafine cementitious grout in three particle grades containing Portland cement, pumice as a pozzolanic material and superplasticizer in the amounts of about 30 wt. % to about 70 wt. % Portland cement; from about 30 wt. % to about 70 wt. % pumice containing at least 70% amorphous silicon dioxide; and from 1.2 wt. % to about 5.0 wt. % superplasticizer. The superplasticizer is dispersed in the mixing water prior to the addition of dry grout and the W/CM ratio is about 0.4 to 1/1. The grout has very high strength and very low permeability with good workability. The ultrafine particle sizes allow for sealing of microfractures below 10 {mu}m in width.

Authors:
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
20013800
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 19 Oct 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; GROUTING; SEALING MATERIALS; PORTLAND CEMENT; CHEMICAL COMPOSITION; RHYOLITES; SILICON OXIDES; PLASTICIZERS; MECHANICAL PROPERTIES; MATERIALS WORKING; PERMEABILITY

Citation Formats

Ahrens, E H. Ultrafine cementitious grout. United States: N. p., 1999. Web.
Ahrens, E H. Ultrafine cementitious grout. United States.
Ahrens, E H. 1999. "Ultrafine cementitious grout". United States.
@article{osti_20013800,
title = {Ultrafine cementitious grout},
author = {Ahrens, E H},
abstractNote = {An ultrafine cementitious grout in three particle grades containing Portland cement, pumice as a pozzolanic material and superplasticizer in the amounts of about 30 wt. % to about 70 wt. % Portland cement; from about 30 wt. % to about 70 wt. % pumice containing at least 70% amorphous silicon dioxide; and from 1.2 wt. % to about 5.0 wt. % superplasticizer. The superplasticizer is dispersed in the mixing water prior to the addition of dry grout and the W/CM ratio is about 0.4 to 1/1. The grout has very high strength and very low permeability with good workability. The ultrafine particle sizes allow for sealing of microfractures below 10 {mu}m in width.},
doi = {},
url = {https://www.osti.gov/biblio/20013800}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 19 00:00:00 EDT 1999},
month = {Tue Oct 19 00:00:00 EDT 1999}
}