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    Browsing ICAR Technical Reports by Issue Date

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        An investigation of the status of by-product fines in the United States 

        Hudson, W. Ronald; Little, Dallas N.; Razmi, Arslan M.; Anderson, V.; Weissmann, Angela Jannini (University of Texas at Austin. International Center for Aggregates Research, 1997-11)
        The handling and disposal of fines produced as a result of the aggregate crushing and production process are some of the major problems facing the aggregate industry today, having both economic and environmental implications. ...
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        A Study on the Feasibility of Compacting Unbound Graded Aggregate Base Courses in Thicker Lifts Than Presently Allowed by State Departments of Transportation 

        Bueno, Jaime Luis; Stokoe, Kenneth H.; Allen, John J. (1998-10)
        A study was conducted to evaluate the feasibility of compacting unbound aggregates base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states ...
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        Prediction of Working Load Displacements Under Plate Loading Tests from Seismic Stiffness Measurements 

        Myers, Michael L.; Stokoe, Kenneth H.; Allen, John J. (1998-10)
        A study was conducted to evaluate the feasibility of compacting unbound base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states allow a maximum ...
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        Increased Single-Lift Thicknesses for Unbound Aggregate Base Courses 

        Allen, John J.; Bueno, Jaime L.; Kalinski, Michael E.; Myers, Michael L.; Stokoe, Kenneth H. (1998-10)
        A study was conducted to evaluate the feasibility of compacting unbound aggregate base courses in thicker lifts than currently permitted by state departments of transportation (DOTs). At present, the majority of states ...
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        Rapid Test to Establish Grading of Unbound Aggregate Products: Evaluation of Potential Aggregate Grading Technologies 

        Rauch, Alan F.; Haas, Carl T. (Carl Thomas); Kim, Hyoungkwan; Browne, Craig (2000-02)
        A research study is underway to develop automated methods for rapidly grading aggregates on the production line in a typical aggregate separation or mixing facility. This interim report serves to document preliminary work ...
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        Field Validation of the Cross-Anisotropic Behavior of Unbound Aggregate Bases 

        Tutumluer, Erol; Adu-Osei, Alex; Little, Dallas N.; Lytton, Robert L. (2001-03)
        The ICAR Research Project 502 has focused on determining structural considerations of unbound aggregate pavement layers for a proper representation in the new AASHTO Pavement Design Guide 2002. The research team developed ...
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        Effects of Superpave restricted zone on permanent deformation 

        Chowdhury, Arif; Button, Joe W.; Grau, Jose D. C. (2001-05)
        The purpose of this study is to evaluate the restricted zone effect using four different aggregates: crushed granite, crushed limestone, crushed river gravel, and a mixture of crushed river gravel as coarse aggregate with ...
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        Evaluation of Superpave Fine Aggregate Angularity Specification 

        Chowdhury, Arif; Button, Joe W.; Kohale, Vipin; Jahn, David W. (2001-05)
        The validity of the Superpave fine aggregate angularity (FAA) requirement is questioned by both the owner agencies and the paving and aggregate industries. The FAA test is based on the assumption that more fractured faces ...
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        Effects of Aggregate Gradation and Angularity on VMA and Rutting Resistance 

        Park, Dae-Wook; Chowdhury, Arif; Button, Joe W. (2001-06)
        The Superpave system adopted the voids in mineral aggregate (VMA) criteria developed by McLeod using the 75-blow Marshall compactor for conventional dense-graded hot mix asphalt (HMA) mixtures. This VMA criteria is a ...
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        Alkali-Silica Reaction in Portland Cement Concrete: Testing Methods and Mitigation Alternatives 

        Touma, Wissam; Fowler, David W.; Carrasquillo, Ramón L. (2001-07)
        Identifying the susceptibility of an aggregate to alkali-silica reaction (ASR) before using it in concrete is one of the most efficient practices for preventing damage and failure. Several tests have been developed for ...
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        Structural Characteristics of Unbound Aggregate Bases to Meet AASHTO 2002 Design Requirements: Interim Report 

        Adu-Osei, Alex; Little, Dallas N.; Lytton, Robert L. (2001-07)
        This report gives the results of a study of the properties of unbound aggregate base materials using both laboratory testing data from full scale field tests in Illinois, Georgia, and Texas, and a model of cross-anisotropic ...
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        Use of High Fines Concrete (HFC) in Insulated Concrete Form (ICF) Construction 

        Zollinger, Dan G. , 1952- (2001-09)
        This project work consisted of developing technical data to justify, from the standpoint of material properties (of aggregate fines and HFC), construction efficiency, cost competitiveness, and energy performance, a basis ...
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        Framework for Development of a Classification Procedure for Use of Aggregate Fines in Concrete 

        Zollinger, Dan G. , 1952-; Sarkar, Shondeep L. (2001-10)
        Although data on use of aggregate fines in portland cement concrete are largely very encouraging, there is a lack of proper definition, and knowledge regarding nature, and characteristics of different aggregate fines, their ...
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        Characterization of Unbound Granular Layers in Flexible Pavements 

        Adu-Osei, Alex (2001-12)
        The mathematical characterization of unbound granular materials should ideally be based on the behavior of the individual constituent elements and their interaction. Until particulate mechanics are developed to a level ...
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        An Experimental Study on the Guidelines for Using Higher Contents of Aggregate Microfines in Portland Cement Concrete 

        Fowler, David W.; Ahn, Nam-Shik (2001-12)
        The use of manufactured fine aggregate (MFA) in portland cement concrete becomes more common as sources of natural sands are depleted. There is a great need to utilize MFA better, particularly the minus 75µm sizes. The ...
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        Rapid Test to Establish Grading of Unbound Aggregate Products: An Evaluation of Automated Devices to Replace and Augment Manual Sieve Analyses in Determining Aggregation Gradation 

        Rauch, Alan F.; Haas, Carl T. (Carl Thomas); Browne, Craig; Kim, Hyoungkwan (2002-02)
        Several automated devices are commercially available for measuring the gradation of unbound stone aggregates. These computerized machines, which provide a rapid alternative to manual sieving, capture and process two-dimensional ...
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        Rapid Test to Establish Grading of Unbound Aggregate Products: Automation of Aggregate Characterization Using Laser Profiling and Digital Image Analysis 

        Haas, Carl T. (Carl Thomas); Rauch, Alan F.; Kim, Hyoungkwan; Browne, Craig (2002-06)
        This final project report describes the development of a laser scanning device for measuring the gradation and other morphological characteristics of unbound construction aggregates. The device is called the LASS, for ...
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        Summary of Concrete Workability Test Methods 

        Koehler, Eric Patrick; Fowler, David W. (2003-08)
        This document describes 61 test methods for measuring concrete workability. Many more test methods have been developed for a single project or for a specific application and have been sparsely reported in the literature, ...
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        Qualification of Concrete Workability by Means of the Vibrating Slope Apparatus 

        Bodenlos, Kainan David; Fowler, David W. (2003-12)
        A new device, the Vibrating Slope Apparatus (VSA), developed for qualifying concrete workability under vibration, was borrowed by the International Center for Aggregates Research (ICAR) Project 105 researchers for evaluation. ...
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        The effects of the aggregates characteristics on the performance of Portland cement concrete 

        Quiroga, Pedro Nel; Fowler, David W. (2003-12)
        Aggregate shape, texture, and grading have a significant effect on the performance of fresh concrete. Aggregates blends with well-shaped, rounded, and smooth particles require less paste for a given slump than blends with ...

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