A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Use of Insulation to Attenuate Frost Heaving
The use of polystyrene insulation board to prevent detrimental frost heaving was evaluated in the reconstruction of a section of highway that had shown distress due to frost heaving in the subgrade. The polystyrene board was placed on the subgrade, in thicknesses of 1, 1 l/2 and 2 inches, in three contiguous sections, and covered with a 1.3 ft. pavement section. Thermisters and frost depth indicators were used in the three test sections to monitor temperature and freezing during the winter seasons of 1966-67 and 1967-68. Visual observations and thermister and frost depth measurements were also made in control sections (normal construction) at each end of the insulated sections. Freezing indexes, based on air temperature measurements, were determined for the two winters. Beam deflection measurements were made immediately after construction of the insulated sections and one year later. A construction cost comparison of insulated sections with normal (control) sections was made. (BPR abstract)
Use of Insulation to Attenuate Frost Heaving
The use of polystyrene insulation board to prevent detrimental frost heaving was evaluated in the reconstruction of a section of highway that had shown distress due to frost heaving in the subgrade. The polystyrene board was placed on the subgrade, in thicknesses of 1, 1 l/2 and 2 inches, in three contiguous sections, and covered with a 1.3 ft. pavement section. Thermisters and frost depth indicators were used in the three test sections to monitor temperature and freezing during the winter seasons of 1966-67 and 1967-68. Visual observations and thermister and frost depth measurements were also made in control sections (normal construction) at each end of the insulated sections. Freezing indexes, based on air temperature measurements, were determined for the two winters. Beam deflection measurements were made immediately after construction of the insulated sections and one year later. A construction cost comparison of insulated sections with normal (control) sections was made. (BPR abstract)
Use of Insulation to Attenuate Frost Heaving
L. M. Hatch (author)
1969
49 pages
Report
No indication
English
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