TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2104 includes 11 papers that explore a handheld image analysis system, falling weight deflectometer testing, predicting asphalt mixture skid resistance, surface wave testing for the modulus of rubblized portland cement concrete, and testing of recycled pulverized hot-mix asphalt material. This issue of the TRR also highlights the cementitious, chemical, and mechanical stabilization of geomaterials by examining water as the key to expansion of ettringite in cementitious materials, differential scanning calorimetry for the validation of sensitivity of sulfate-bearing soils to ettringite growth, environmental impacts on construction of soil-cement pavement layers, carbon dioxide emissions from highway subgrade improvements, geogrids and lime treatment to control dry land longitudinal cracking, and deformation properties of untreated and enzyme-treated bottom ash waste used in foundations. (Author/publisher)
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