AGGREGATE REACTIVITY AND CONCRETE DURABILITY IN NEW MEXICO
The objective of this research was to understand why some older New Mexico concrete is more durable than some younger concrete. The approach was to determine (1) what is present in New Mexico concrete of varying ages, and (2) what is in present-day New Mexico concrete aggregate. The research examined hardened New Mexico concrete of varying ages by coring dated concrete ranging in age from about 75 years (poured in 1923) to 1 year (1997) for part 1. The concrete was from Socorro, Albuquerque, and Gallup. The research examined the aggregate produced by six operations in the state for part 2. The mineralogy of these aggregates was determined by x-ray diffraction, petrography, and scanning electron microscopy. Splits of our sampled aggregates were sent to the New Mexico State Highway and Transportation Department Central Materials Laboratory in Santa Fe for mortar-bar expansion tests.
New Mexico Bureau of Mines and Mineral Resources801 Leroy Place
Socorro, NM United States 87801
Sante Fe, NM United States 87504-1149
- Austin, G S
- Coose, K E
- Publication Date: 1998-9
- Features: Figures; References; Tables;
- Pagination: 29 p.
- TRT Terms: Admixtures; Aggregates; Concrete; Concrete aggregates; Concrete tests; Diffraction; Durability tests; Petrography; Scanners
- Subject Areas: Geotechnology; Highways; Materials; I32: Concrete;
- Accession Number: 00766673
- Record Type: Publication
- Files: TRIS, STATEDOT
- Created Date: Jul 7 1999 12:00AM