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Title: High-performance concrete mix for precast wythes

Abstract

A lightweight concrete composition includes the concrete components, per yd3 of concrete: Type III Portland cement (lb/yd3) 200-900; metakaolin (lb/yd3) 100-520; calcium sulfoaluminate cement (CSA) (lb/yd3) 40-840; 3/8″ lightweight expanded slate aggregate (lb/yd3) 70-550; lightweight fine expanded slate aggregate (lb/yd3) 300-550; expanded glass fine aggregate (0.5-1 mm) 35-90 (lb/yd3); expanded glass fine aggregate (1-2 mm) 35-90 (lb/yd3); water (lb/yd3) 300-350; CSA cement set retarder 0.015 to 0.06 oz per lb of CSA cement; high-range water-reducing admixture 120-1000 (fl. oz/yd3); hydration controlling admixture 0-80 (fl. oz/yd3); reinforcing non-metallic lightweight fibers <1.5″ in length 0-8 (lb/yd3); wherein the concrete has a flexural strength of at least 600 psi at 12 hours, a density of 95 to 110 lb/ft3, and a compressive strength at 28 days of at least 7,000 psi. A lightweight concrete wythe and method of making a lightweight concrete wythe are also disclosed.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771631
Patent Number(s):
10836678
Application Number:
16/383,058
Assignee:
UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E04 - BUILDING E04C - STRUCTURAL ELEMENTS
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/12/2019
Country of Publication:
United States
Language:
English

Citation Formats

Hun, Diana E., Mattus, Catherine H., Onyango, Mbakisya, Owino, Joseph, and Rollins, Alex Brent. High-performance concrete mix for precast wythes. United States: N. p., 2020. Web.
Hun, Diana E., Mattus, Catherine H., Onyango, Mbakisya, Owino, Joseph, & Rollins, Alex Brent. High-performance concrete mix for precast wythes. United States.
Hun, Diana E., Mattus, Catherine H., Onyango, Mbakisya, Owino, Joseph, and Rollins, Alex Brent. Tue . "High-performance concrete mix for precast wythes". United States. https://www.osti.gov/servlets/purl/1771631.
@article{osti_1771631,
title = {High-performance concrete mix for precast wythes},
author = {Hun, Diana E. and Mattus, Catherine H. and Onyango, Mbakisya and Owino, Joseph and Rollins, Alex Brent},
abstractNote = {A lightweight concrete composition includes the concrete components, per yd3 of concrete: Type III Portland cement (lb/yd3) 200-900; metakaolin (lb/yd3) 100-520; calcium sulfoaluminate cement (CSA) (lb/yd3) 40-840; 3/8″ lightweight expanded slate aggregate (lb/yd3) 70-550; lightweight fine expanded slate aggregate (lb/yd3) 300-550; expanded glass fine aggregate (0.5-1 mm) 35-90 (lb/yd3); expanded glass fine aggregate (1-2 mm) 35-90 (lb/yd3); water (lb/yd3) 300-350; CSA cement set retarder 0.015 to 0.06 oz per lb of CSA cement; high-range water-reducing admixture 120-1000 (fl. oz/yd3); hydration controlling admixture 0-80 (fl. oz/yd3); reinforcing non-metallic lightweight fibers <1.5″ in length 0-8 (lb/yd3); wherein the concrete has a flexural strength of at least 600 psi at 12 hours, a density of 95 to 110 lb/ft3, and a compressive strength at 28 days of at least 7,000 psi. A lightweight concrete wythe and method of making a lightweight concrete wythe are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {11}
}