(1968) Evaluation Study of Pit Run Gravel Asphalt Treated Base Mixtures with Various Percentages of Crushed Limestone, R-217, 1968. Transportation, Department of
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Abstract
In November of 1966, an investigation of the rigid Class I asphalt treated base specification, requiring 70 per cent crushed limestone, was initiated. It was felt that it might be possible to modify the need for crushed particles, in the construction of basis on heavy duty roads, at a savings, by using more local materials, without sacrificing strength and/or durability. This is a short study on typical sources of pit run gravel, with various percentages of limestone. It is conducted with an eye open to the possibility that our specifications may be modified. The possibility that further investigation may be desirable is not ignored.
| Item Type: | Departmental Report |
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| Keywords: | Asphalt, Asphalt based materials, Asphalt mixtures, Cost effectiveness, Crushed limestone, Gravel pits, Road construction, Pit run gravel asphalt |
| Subjects: | Transportation Transportation > Materials Transportation > Materials > Gravel and aggregates Transportation > Roads and highways Transportation > Research Transportation > Research > Asphalt Transportation > Economics, finance, and taxes |
| ID Code: | 17188 |
| Deposited By: | Iowa DOT Library |
| Deposited On: | 10 Jun 2014 15:37 |
| Last Modified: | 26 Jan 2015 12:39 |
| URI: | https://publications.iowa.gov/id/eprint/17188 |