Now showing items 1-10 of 52
(University of Texas at Austin. International Center for Aggregates Research, 2000)
Structural Characteristics of Unbound Aggregate Bases for Mechanistic Design
(International Center for Aggregates Research, 2001)
The next AASHTO Guide for the Design of Pavement Structures will make extensive use of mechanistic-empirical design principles, and may result in pavement designs with different layer thicknesses than are currently common. ...
The effects of the aggregates characteristics on the performance of Portland cement concrete
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 ...
User’s Manual for Finite Element Pavement Response Analysis Software TTI-PAVE
A finite element program was developed to calculate the responses of the pavement under traffic load. The finite element procedure and the code was originally derived by Owen and Hinton (1980) using elasto-plastic formulation. ...
Utilizing Aggregates Characteristics to Minimize Cement Content in Portland Cement Concrete
Aggregate, the main constituent of concrete, constitutes 60 to 80% of the total volume of concrete. Proper selection of the type and particle size distribution of the aggregates affects the workability and the hardened ...
Use of High Fines Concrete (HFC) in Insulated Concrete Form (ICF) Construction
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 ...
Test Methods for Evaluating Preventive Measures for Controlling Expansion due to Alkali-Silica Reaction in Concrete
This paper provides a critical evaluation of the various methods available for testing the efficacy of measures for preventing expansion due to alkali-silica reaction (ASR) in concrete containing deleteriously reactive ...
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
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 ...
Role of Aggregate Characteristics to Load in SMA
Stone matrix asphalt (SMA) mixtures rely on stone-on-stone contacts among particles to resist applied forces and permanent deformation. Aggregates in SMA should resist degradation (fracture and abrasion) under high stresses ...
The Prediction of Coarse Aggregate Performance by Micro-Deval and Soundness Related Aggregate Tests
This research project concentrated on determining whether or not a correlation existed between laboratory aggregate tests and observed aggregate field performance. For this purpose, aggregate samples were collected from ...