 | Up a level |
(2024) Research Solutions - Selecting and repairing roads in Iowa suitable for cold in-place recycling, TR-774. Transportation, Department of
(2023) Research Solutions - Stabilization strategies for Iowa's unpaved roads may save money and increase durability - TR-721. Transportation, Department of
(2023) Research in Progress- Sustainable dust suppressants on gravel roads may reduce health and environmental impacts - TR-813. Transportation, Department of
(2023) Cold In-Place Recycling Project Selection and Guidance for Iowa Roadways - TR-774. Transportation, Department of
(2022) Low-Cost Rural Surface Alternatives Phase III: Demonstration Project TR-721. Transportation, Department of
(2021) Use of Waste Quarry Fines as a Binding Material on Unpaved Roads Project TR-747. Transportation, Department of
(2021) Evaluation of the Retsch Technology Camsizer P4 to assess the shape of crushed particles proposed to be added to natural sand fine aggregate used in Portland Cement Concrete - 20-SPR1-001. Transportation, Department of
(2020) Role of Coarse Aggregate Porosity on Chloride Intrusion in HPC Bridge Decks - TR-728. Transportation, Department of
(2019) Performance-Based Evaluation of Cost-Effective Aggregate Options for Granular Roadways TR704. Transportation, Department of
(2019) Petrographic and Petrophysical Analysis of Decades-Old Iowa Portland Cement Concretes - 18-SPR0-008. Transportation, Department of
(2018) Prevention of Longitudinal Cracking in Iowa Widened Concrete Pavement - TR-700. Transportation, Department of
(2017) Impacts of Internal Curing on the Performance of Concrete Materials in the Laboratory and the Field TR-676 November 2017. Transportation, Department of
(2016) Evaluation and Testing of a Lightweight Fine Aggregate Concrete Bridge Deck in Buchanan County, Iowa, TR-648, 2016. Transportation, Department of
(2015) Carbonate Rock Pore Size Distribution Determination through Iowa Pore Index Testing, MLR-15-01, 2015. Transportation, Department of
(2015) Low-Cost Rural Surface Alternatives: Demonstration Project, TR-664, 2015. Transportation, Department of
(2013) Pilot Construction Project for Granular Shoulder Stabilization, TR-634, 2013. Transportation, Department of
(2012) Development of Quality Standards for Inclusion of High Recycled Asphalt Pavement Content in Asphalt Mixtures, TR-624, 2012. Transportation, Department of
(2009) Level I & II Aggregate Reference Manual 2009-2010, Technical Training and Certification Program, 2009. Transportation, Department of
(2008) Performance Evaluation of Concrete Pavement Granular Subbase - Pavement Surface Condition Evaluation, TR-554, 2008. Transportation, Department of
(2008) Examination of Curing Criteria for Cold In-Place Recycling, February 2008. Transportation, Department of
(2007) Air Content and Permeability of PCC Pavements: 1909 to 2006, MLR-05-02, 2007. Transportation, Department of
(2007) Level I & II Aggregate Instruction Text, Technical Training and Certification Program 2007-2008, 2007. Transportation, Department of
(2007) Level I & II Aggregate Reference Manual 2007-2008, Technical Training and Certification Program, 2007. Transportation, Department of
(2005) Self-Consolidating Concrete—Applications for Slip-Form Paving: Phase I (Feasibility Study), 2005. Transportation, Department of
(2005) Fly Ash Soil Stabilization for Non-Uniform Subgrade Soils, Volume I: Engineering Properties and Construction Guidelines, TR-461, 2005. Transportation, Department of
(2004) Determination of the Optimum Base Characteristics for Pavements, TR-482, 2004. Transportation, Department of
(2004) Level I & II Aggregate Instruction Text, Technical Training and Certification Program 2004-2005, 2004. Transportation, Department of
(2002) Level I & II Aggregate Reference Manual 2001-2002, Technical Training and Certification Program, 2002. Transportation, Department of
(2001) Performance of Poly-Carb, Inc. Flexogrid Bridge Overlay System, MLR-86-04, 2001. Transportation, Department of
(2001) Level I & II Aggregate Reference Manual 2001-2002, Technical Training and Certification Program, October 2, 2001. Transportation, Department of
(2001) Level I Hot Mix Asphalt 2001-2002 Instruction Manual, Technical Training and Certification Program, 2001. Transportation, Department of
(2001) Level II Portland Cement Concrete 2001-2002, Instruction Manual, Technical Training and Certification Program, 2001. Transportation, Department of
(1996) Level I & II Aggregate Reference Manual 1996-1997, Technical Training and Certification Program, October 31, 1996. Transportation, Department of
(1996) Structural Analysis of Aggregate Blends Using the SHRP Gyratory Compactor, MLR-95-8, 1996. Transportation, Department of
(1995) Coarse Aggregate Gradations for P.C. Concrete, MLR-94-8, 1995. Transportation, Department of
(1995) Investigation of PCC Pavement Deterioration: A Few Facts are Worth More than 100 Opinions, Interim Report, HR-2074, 1995. Transportation, Department of
(1994) Level I & II Aggregate Reference Manual 1994, Technical Training and Certification Program, November 1994. Transportation, Department of
(1994) Thermogravimetric Analysis of Carbonate Aggregate, HR-336, 1994. Transportation, Department of
(1993) Investigation of Rapid Thermal Analysis Procedures for Prediction of the Service Life of PCCP Carbonate Coarse Aggregate, HR-337, 1993. Transportation, Department of
(1993) Foamed Asphalt Shoulders City of Muscatine, HR-529, 1993. Transportation, Department of
(1993) Instruction Text for Aggregate Inspectors and Technicians Training, Office of Materials, Highway Division, January 1993. Transportation, Department of
(1992) Investigation of Rapid Thermal Analysis Procedures for Prediction of the Service Life of PCCP Carbonate Coarse Aggregate: Phase I, Progress Report, HR-337, 1992. Transportation, Department of
(1990) Evaluation of Alternative Methods to Obtain Specific Gravity of Coarse Aggregate, MLR-89-7, 1990. Transportation, Department of
(1990) The Effects of Crushed Particles in Asphalt Mixtures, HR-311 and MLR-88-16, Part 1, 1990. Transportation, Department of
(1989) Fly Ash Affect on Alkali-Aggregate Reactivity, MLR-88-7, 1989. Transportation, Department of
(1989) An Investigation of Emulsion Stabilized Limestone Screenings, HR-309, 1989. Transportation, Department of
(1989) Polymerized Asphalt Cement, HR-533, 1989. Transportation, Department of
(1989) Evaluation of Carbonate Aggregate Using X-Ray Analysis, HR-266, 1989. Transportation, Department of
(1989) Demonstration Project No. 74, Field Management of Asphalt Mixes, Study No. 112 Iowa, Mix Verification and Acceptance Simulations, 1989. Transportation, Department of
(1988) Laboratory Evaluation of Roller-Compacted Concrete, MLR-86-6, 1988. Transportation, Department of
(1988) Gradation Analysis of Cold Feed and Extracted Bituminuous Mix Samples, MLR-88-2, 1988. Transportation, Department of
(1987) Frictional Properties of Asphalt Concrete Pavements in Iowa, MLR-87-5, 1987. Transportation, Department of
(1987) Ammonium Phosphate/Fly Ash Road Base Construction, HR-294, Construction Report, 1987. Transportation, Department of
(1987) The Relationship of Ferroan Dolomite Aggregate to Rapid Concrete Deterioration, HR-266, 1987. Transportation, Department of
(1986) An Evaluation of the Troxler 3241-B Nuclear Asphalt Gauge, MLR-85-11, 1986. Transportation, Department of
(1986) Effect of Compaction on the Aggregate Fracturing of Asphalt Concrete, MLR-86-07, 1986. Transportation, Department of
(1986) Effects of Special Aggregate on Bridge Deck Overlay Frictional Properties, HR-205, 1986. Transportation, Department of
(1986) Evaluation of Asphalt Mixes Made from Reclaimed Concrete Aggregates, MLR-85-07, 1986. Transportation, Department of
(1985) Evaluation of Fly Ash in Bridge Deck Concrete, MLR-84-2, 1985. Transportation, Department of
(1985) The Effect of Deicing Salt on Aggregate Durability, Progress Report HR-266, 1985. Transportation, Department of
(1984) The Relationship of Aggregate Durability to Trace Element Content, Interim Report, HR-266, 1984. Transportation, Department of
(1983) Factors Relating to Aggregate Durability in Portland Cement Concrete, HR-2022, Interim Report, 1983. Transportation, Department of
(1982) Performance of Randomly Oriented, Fiber-Reinforced Roadway Soils, HR-211, 1982. Transportation, Department of
(1982) Effect of Oven Heating Time of Asphaltic Concrete on Marshall Stability, MLR-82-02, 1982. Transportation, Department of
(1982) Sieve Analysis of Combined Aggregate Samples by Different Test Methods, MLR-84-05, 1982. Transportation, Department of
(1982) Effect of Density on Marshall Stability of Hot-Mix Asphaltic Concrete, MLR-82-01, 1982. Transportation, Department of
(1981) A Review of the Frictional Classification of Iowa Aggregates, MLR-81-04, 1981. Transportation, Department of
(1981) Evaluation of Changes in Productivity Resulting from Removal of Soil for Highway Construction, HR-186, 1981. Transportation, Department of
(1980) Field Performance and Evaluation of Slurry Seals, HR-195, 1980. Transportation, Department of
(1980) Treating Iowa's Marginal Aggregates and Soils by Foamix Process, HR-212, 1980. Transportation, Department of
(1980) Preview of Iowa Asphalt Treated Base Construction by Richard P. Henely, 1980. Transportation, Department of
(1979) Evaluation of Cover Aggregate Stripping Characteristics, HR-182, 1979. Transportation, Department of
(1979) General Aggregate Source Information, 1979. Transportation, Department of
(1978) The Economic Potential of the Spergen Formation in Seven Southeastern Iowa Counties, HR-189, 1978. Transportation, Department of
(1978) Recycling of Asphalt Concrete From I-80 in Cass County, HR-1011, 1978. Transportation, Department of
(1978) General Aggregate Source Information, January 1978. Transportation, Department of
(1977) Dust Control Using an Asphalt Emulsion, HR-196, 1977. Transportation, Department of
(1977) An Evaluation of Cover Aggregate Stripping Characteristics, Progress Report, HR-182, 1977. Transportation, Department of
(1977) Sprinkle Treatment (Bristowes Spreader), HR-512. Transportation, Department of
(1976) A Laboratory Investigation of An Accelerated Polishing Method for Determining the Skid Resistance Potential of Aggregates, MLR-76-02 and R-264, 1976. Transportation, Department of
(1975) Durability of Concrete as Affected by Variations in Air and W/C Ratio, R-258, 1975. Transportation, Department of
(1973) Methods to Increase Durability of Reactive ("D" Cracking) Coarse Aggregate in Portland Cement Concrete, MLR-73-01, 1973. Transportation, Department of
(1973) An Investigation of Portland Cement Concrete Utilizing 70% Class V Aggregate and 30% Calcareous Coarse Aggregate, R-255, 1973. Transportation, Department of
(1973) Evaluation of Gap-Graded Asphalt Concrete Mixtures Part II: Statistical Design and Analysis, HR-157, 1973. Transportation, Department of
(1972) Evaluation of Gap-Graded Asphalt Concrete Mixtures Vol. 3. Appendix, HR-157, Volume 3 (Part 3), 1972 (1973). Transportation, Department of
(1972) Evaluation of Gap-Graded Asphalt Concrete Mixtures, Vol. 1. Physical Properties (Part I: Mechanical Properties), HR-157, Volume 1, 1972 (1973). Transportation, Department of
(1972) Special Project Report: Production & Placement of Bituminous Treated Aggregate Base and Type B Asphalt Concrete Produced by a Drum Mixing Process prepared by Bernard H. Ortgies, July 1972. Transportation, Department of
(1972) Laboratory Evaluation of Gilson Porta Splitter : Final Report of R-257, April 26, 1972. Transportation, Department of
(1971) Absorptive Aggregates in Asphalt Paving Mixtures, HR-142, 1971. Transportation, Department of
(1971) An Investigation of the Chemical Method of Determining the Cement Content of Hardened Concrete, MLR-71-01 and R-248, 1971. Transportation, Department of
(1970) Abrasion of Aggregates as Affected by Grading, 1970. Transportation, Department of
(1970) Granular Base Materials for Flexible Pavements, HR-131, 1970. Transportation, Department of
(1970) Loss of Prestress, Camber, and Deflection of Non-Composite and Composite Structures Using Different Weight Concretes, HR-137, 1970. Transportation, Department of
(1970) Absorption of Asphalt by Aggregate, HR-142, Progress Report, 1970. Transportation, Department of
(1970) Final Report Research Project HR-155 by M. J. Mausbach and W. D. Shrader, 1970. Transportation, Department of
(1970) Soil Erosion Control for Secondary Roads, HR-155, 1970. Transportation, Department of
(1969) Effects of Aggregates upon Asphalt Extraction Tests,September 17, 1969. Transportation, Department of
(1969) A Study of Curing Methods and Type II Cements on the Durability of Concrete, R-11-Z(1), 1969. Transportation, Department of
(1969) Field Observation of Five Lightweight Aggregate Pretensioned Prestressed Bridge Beams, HR-104, 1969. Transportation, Department of
(1968) Iowa State Highway Commission, Materials Department, Special Investigations final report of R-233 : method "A" freeze-thaw studies of concrete quality aggregates at various moisture contents, November 4, 1968. Transportation, Department of
(1968) Evaluation Study of Pit Run Gravel Asphalt Treated Base Mixtures with Various Percentages of Crushed Limestone, R-217, 1968. Transportation, Department of
(1968) Evaluation of Experimental Data Obtained from Lightweight Aggregate Bridge Girders, HR-104, 1968. Transportation, Department of
(1968) Study of Type 'A' Asphaltic Concrete Surface Mix Design, R-232, 1968. Transportation, Department of
(1968) Evaluation of Cohesion and Swell Characteristics of Asphalt Treated Base Mixtures, R-223, 1968. Transportation, Department of
(1968) Evaluation of Limestone Filler in Gravel Mixtures "Asphaltic Concrete", R-228, 1968. Transportation, Department of
(1967) Shear Strength of Granular Materials, 1967. Transportation, Department of
(1967) Relationship of Carbonate Aggregates to Concrete Aging, HR-116, 1967. Transportation, Department of
(1967) Compositional and Mechanical Properties of Carbonate Rocks, HR-110, 1967. Transportation, Department of
(1966) Effect of CA-Montmorillonite Expansion on X-Ray Diffraction Intensities, Progress Report, HR-111, 1966. Transportation, Department of
(1966) Stability of Granular Base Course Materials containing Bituminous Admixtures by John Charles Whisler, 1966. Transportation, Department of
(1966) Stability of Granular Base Course Mixes compacted to Modified Proctor Density by Thomas William Best, 1966. Transportation, Department of
(1965) A Study to Correlate Soil Consistency Limits with Soil Moisture Tensions, HR-27, 1965. Transportation, Department of
(1965) Compositional and Mechanical Properties of Carbonate Rocks, Progress Report, HR-110, 1965. Transportation, Department of
(1965) Factors Influencing Stability of Granular Base Course Mixes, Progress Report, HR-99, 1965. Transportation, Department of
(1964) Factors Influencing Stability of Granular Base Course Mixes, Progress Report, HR-99, 1964 (November). Transportation, Department of
(1964) Modification of Ca-Montmorillonite by Low-Temperature Heat Treatment, HR-106, 1964. Transportation, Department of
(1964) Clay Mineralogy of a Gumbotil, HR-106, 1964. Transportation, Department of
(1964) Factors Influencing Stability of Granular Base Course Mixes, Progress Report, HR-99, 1964 (April). Transportation, Department of
(1963) Characteristics of Chemical Treated Roadway Surfaces, HR-33, 1963. Transportation, Department of
(1962) Behavior of Carbonate Rocks as Concrete Aggregates, HR-15, 1962. Transportation, Department of
(1962) Studies on Soil-Aggregate-Sodium Chloride Stabilized Roads in Franklin County, Iowa, HR-33, 1962. Transportation, Department of
(1961) Properties of Carbonate Rocks in Iowa by Leo A. Thomas and Donald L. Biggs, June 30, 1961. Transportation, Department of
(1960) Bituminous Mixes Prepared with Ungraded Local Aggregates, Iowa Highway Research Board Bulletin No. 19, 1960. Transportation, Department of
(1960) Chemical Reactions Involving Aggregates, HR-15, 1960. Transportation, Department of
(1960) Missouri River Studies: Alluvial Morphology and Engineering Soil Classification, HR-1, Progress Report, 1960. Transportation, Department of
(1959) Report on Cooperative Freezing-and-Thawing Tests of Concrete, 1959. Transportation, Department of
(1916) Concrete Sidewalk Construction, March 20, 1916. Iowa State University
