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Direct Substitution of Sulfur for Asphalt in Paving Materials.

Authors
McBee-WC; Sullivan-TA
Source
NTIS: PB 290 113 :23 pages
Link
NIOSHTIC No.
10007854
Abstract
Prompted by forecasts of a sulfur oversupply, the Bureau of Mines, U.S. Department of the Interior, is conducting research on potentially large-scale uses of this commodity to extend or replace such construction materials as asphalt, cement, and mineral aggregates. Through these efforts, paving materials have been developed in which sulfur replaces up to 50 pct of the asphalt normally present and which can be prepared and placed with existing mixing and paving equipment. Laboratory properties and design methods for this direct mixing process are described along with properties obtained on small- and large-scale field demonstration projects. These properties are compared with those obtained from control materials prepared without sulfur additions. Monitoring for toxic gases during laboratory and commercial mixing and paving operations is discussed also.
Publication Date
19780101
Document Type
IH; Report of Investigation;
Fiscal Year
1978
NTIS Accession No.
PB-290113
NTIS Price
A03
Identifying No.
RI 8303
NIOSH Division
BCEL;
Source Name
NTIS: PB 290 113
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