01478737

Component

https://doi.org/10.3141/2342-08

http://scholar.google.com...over&publication_year=2013

From 1990 to 2008 an integral component of the portland cement concrete module of the annual National Highway Institute Highway Materials Short Course was a series of independent and parallel evaluations of fresh and hardened properties for a single load of concrete. Up to six testing teams independently sampled concrete from the truck and tested the fresh concrete for temperature, slump, and air content by pressure and by volume meter. The experiment was repeated annually to demonstrate test procedures and the variability in test results for concrete from a single load. Results indicate the time dependency in both slump and apparent air content, the relationship between slump and apparent air content, and the difference between air content as indicated by the AASHTO T 152/ASTM C231 pressure air meter and the AASHTO T 196/ASTM C173 volumetric air meter.

01494308

13-5257

English

p 61–75

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309263399

Print

Figures (14) ; References (4) ; Tables (2)

Air content; Concrete hardening; Concrete tests; Education; Fresh concrete; Portland cement concrete; Slump test; Temperature; Test procedures

Bridges and other structures; Highways; Materials; Pavements; I32: Concrete

PRP, TRIS, TRB, ATRI

Feb 5 2013 1:00PM

• Comparison of the Superpave Gyratory and Proctor Compaction Methods for the Design of Roller-Compacted Concrete Pavements
• Effect of High-Volume Fly Ash on Shear Strength of Concrete Beams
• Evaluation of Drilled Shafts with Self-Consolidating Concrete
• Factors That Influence Electrical Resistivity Measurements in Cementitious Systems
• Identifying Improved Standardized Tests for Measuring Cement Particle Size and Surface Area
• Importance of Insulation at the Bottom of Mass Concrete Placed on Soil with High Groundwater
• Improving Concrete Sustainability and Performance with Use of Portland–Limestone Cement Synergies
• Influential Depth by Water Absorption and Surface Drying in Concrete Slabs
• Internal Curing of Concrete Bridge Decks in Utah: Preliminary Evaluation
• Isothermal Calorimetry as a Tool to Evaluate Early-Age Performance of Fly Ash Mixtures
• Low-Cost Techniques for Improving the Surface Durability of Pervious Concrete
• Performance of Pore-Lining Impregnants in Concrete Protection by Unidirectional Salt-Ponding Test
• Reducing the Specimen Size of the AASHTO T 97 Concrete Flexural Strength Test for Safety and Ease of Handling
• Ruggedness Study on the AASHTO T 336 Coefficient of Thermal Expansion of Concrete Test Method