Author: C. W. Kaplar
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 32
Book Description
Experiments conducted at USA CRREL in recent years indicate that the two weeks or so required for the frost susceptibility testing of soils with previous procedures can be shortened considerably. Results of these experiments show that useful frost heaving data can be obtained in a matter of 2 or 3 days by a more rapid freezing technique. Results of experiments in which soil specimens were exposed to a constantly maintained temperature are presented. Data show that heave rate in laboratory experiments is a variable, not a constant, of a soil and is strongly dependent upon the heat extraction rate. The important role of frost susceptibility testing and soil evaluation for highway design is discussed. The suitability of equipment for use in conducting frost-heaving tests is also discussed. (Author).
Experiments to Simplify Frost Susceptibility Testing of Soils
Author: C. W. Kaplar
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 32
Book Description
Experiments conducted at USA CRREL in recent years indicate that the two weeks or so required for the frost susceptibility testing of soils with previous procedures can be shortened considerably. Results of these experiments show that useful frost heaving data can be obtained in a matter of 2 or 3 days by a more rapid freezing technique. Results of experiments in which soil specimens were exposed to a constantly maintained temperature are presented. Data show that heave rate in laboratory experiments is a variable, not a constant, of a soil and is strongly dependent upon the heat extraction rate. The important role of frost susceptibility testing and soil evaluation for highway design is discussed. The suitability of equipment for use in conducting frost-heaving tests is also discussed. (Author).
Publisher:
ISBN:
Category : Frost heaving
Languages : en
Pages : 32
Book Description
Experiments conducted at USA CRREL in recent years indicate that the two weeks or so required for the frost susceptibility testing of soils with previous procedures can be shortened considerably. Results of these experiments show that useful frost heaving data can be obtained in a matter of 2 or 3 days by a more rapid freezing technique. Results of experiments in which soil specimens were exposed to a constantly maintained temperature are presented. Data show that heave rate in laboratory experiments is a variable, not a constant, of a soil and is strongly dependent upon the heat extraction rate. The important role of frost susceptibility testing and soil evaluation for highway design is discussed. The suitability of equipment for use in conducting frost-heaving tests is also discussed. (Author).
Freezing Test for Evaluating Relative Frost Susceptibility of Various Soils
Author: C. W. Kaplar
Publisher:
ISBN:
Category : Soil freezing
Languages : en
Pages : 46
Book Description
The report presents a description of the equipment and procedures used in the laboratory test of the relative frost susceptibility of different soils on Corps of Engineers construction projects and includes typical results of freezing tests of natural soils. The test uses a slow unidirectional freezing of a 6-in. high, remolded or undisturbed soil specimen with water available at the base (open system). The heaving rate measured during the test is used as the basis for classification of the frost susceptibility potential of the soil. This type of test, which measures heaving rate, is considered most versatile and adaptable for evaluating the effects of numerous soil parameters on frost heave. (Author).
Publisher:
ISBN:
Category : Soil freezing
Languages : en
Pages : 46
Book Description
The report presents a description of the equipment and procedures used in the laboratory test of the relative frost susceptibility of different soils on Corps of Engineers construction projects and includes typical results of freezing tests of natural soils. The test uses a slow unidirectional freezing of a 6-in. high, remolded or undisturbed soil specimen with water available at the base (open system). The heaving rate measured during the test is used as the basis for classification of the frost susceptibility potential of the soil. This type of test, which measures heaving rate, is considered most versatile and adaptable for evaluating the effects of numerous soil parameters on frost heave. (Author).
CRREL Technical Publications, 1950-1975
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 284
Book Description
Publisher:
ISBN:
Category : Arctic regions
Languages : en
Pages : 284
Book Description
USA CRREL Technical Publications
Author: Cold Regions Research and Engineering Laboratory (U.S.)
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 386
Book Description
Publisher:
ISBN:
Category : Frozen ground
Languages : en
Pages : 386
Book Description
Highway Research Record
Author:
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 916
Book Description
1963- contains papers and reports presented at the 42d- annual meeting of the Highway Research Board.
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 916
Book Description
1963- contains papers and reports presented at the 42d- annual meeting of the Highway Research Board.
USDA Forest Service Research Note RM.
Author: Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 464
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 464
Book Description
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1290
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1290
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
U.S. Forest Service Research Note
Author: United States. Rocky Mountain Forest and Range Experiment Stations, Fort Collins, Colo
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 638
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 638
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1388
Book Description