A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Void Detection and Grouting Process
In recent years, it has been found that one of the most significant factors in the reduction of the life of concrete pavements is the presence of voids beneath the slab. In the design of pavements, it is assumed that there is full support throughout the length of the pavement. When a void develops, this assumption is no longer valid. Studies presented in the report illustrate that increasing void size results in a significant increase in the slab stress. Also, with increasing void size, tandem axle loads have a very significant increase in stress. Thus, the combination of existing voids and increasing tandem axle loads results in significant pavement life reduction. Based on information collected from an experiment performed at Victoria, Texas, in 1981 on a CRCP, this report is intended to establish a procedure which provides the optimum method for detecting voids and a grouting operation to fill them. In this respect, various alternatives involving field observation of pumping and several combinations of deflection measurements recorded by means of the Dynaflect device were evaluated.
Void Detection and Grouting Process
In recent years, it has been found that one of the most significant factors in the reduction of the life of concrete pavements is the presence of voids beneath the slab. In the design of pavements, it is assumed that there is full support throughout the length of the pavement. When a void develops, this assumption is no longer valid. Studies presented in the report illustrate that increasing void size results in a significant increase in the slab stress. Also, with increasing void size, tandem axle loads have a very significant increase in stress. Thus, the combination of existing voids and increasing tandem axle loads results in significant pavement life reduction. Based on information collected from an experiment performed at Victoria, Texas, in 1981 on a CRCP, this report is intended to establish a procedure which provides the optimum method for detecting voids and a grouting operation to fill them. In this respect, various alternatives involving field observation of pumping and several combinations of deflection measurements recorded by means of the Dynaflect device were evaluated.
Void Detection and Grouting Process
F. Torres (author) / B. F. McCullough (author)
1983
188 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Grouting , Reinforced concrete , Concrete pavements , Service life , Voids , Detection , Pavement bases , Axial stress , Optimization , Field tests , Pumping , Deflection , Measurement , Discriminate analysis , Texas , Dynaflect pumping
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