Results 1 to 3 of 3
- Drilled and grouted micropiles : state-of-practice review / by Bruce, Donald A.(CARDINAL)286923; Juran, Ilan.(CARDINAL)313935; United States.Federal Highway Administration.(CARDINAL)139839; Nicholson Construction Company.;
Includes bibliographical references.v. I. Background, classifications, cost -- v. II. Design -- v. III. Construction QA/QC, and testing -- v. IV. Case histories.Final report;Performed by Nicholson Construction Company, under contract no.- Subjects: Technical reports.; Grouting (Soil stabilization); Piling (Civil engineering);
- Available copies: 4 / Total copies: 4
-
unAPI
- Improved grouts for bonded tendons in post-tensioned bridge structures / by Thompson, N. G.(CARDINAL)311419; Lankard, David R.(CARDINAL)311418; Sprinkel, Michael M.(CARDINAL)312777; United States.Federal Highway Administration.(CARDINAL)139839; Cortest Columbus Technologies, Inc.(CARDINAL)311417;
Includes bibliographical references (pages 133-135).Introduction -- Background -- Task A: Development of accelerated test methods -- Task B: Development of design mixtures for grout -- Task C: Design and conduct laboratory test program -- Task D: Specifications for grout mixtures -- Results -- Conclusions -- Recommendations -- Appendix A -- References.Final report;Grout is the final line of defense against corrosion of the steel tendon. Accordingly, FHWA initiated this study (i) to develop and test new mixture designs for grouts, (ii) to develop and perform accelerated corrosion test methods on the new grouts, and (iii) to compare the corrosion performance of the new grouts with the standard grouts. Several modifiers and additives for grouts were examined, including: high-range water-reducers, fly ash, silica fume, latex polymer modifier, expansive agents, anti-bleed additives, and corrosion inhibitors. It was shown that these additives can greatly affect the fluidity, open-time, bleeding/segregation, chloride permeability, and mechanical properties of the grouts. Several experimental grouts were designed which provided improved properties compared to the more standard grouts presently being used. An accelerated corrosion test method (ACTM) was developed which evaluates the corrosion performance of steel tendons embedded in the grout.Performed by Cortest Columbus Technologies, under contract no.- Subjects: Technical reports.; Concrete bridges; Concrete bridges; Grouting (Soil stabilization); Reinforced concrete;
- Available copies: 1 / Total copies: 1
-
unAPI
- Performance of grouts for post-tensioned bridge structures / by Ghorbanpoor, Alireza.(CARDINAL)286946; Madathanapalli, S. C.; United States.Federal Highway Administration.(CARDINAL)139839; University of Wisconsin--Milwaukee.Department of Civil Engineering and Mechanics.(CARDINAL)286945;
Includes bibliographical references (pages 45-46).Final report;Performed by the University of Wisconsin-Milwaukee, Dept. of Civil Engineering and Mechanics, for the Federal Highway Administration, under contract no.- Subjects: Technical reports.; Concrete bridges; Grouting (Soil stabilization); Post-tensioned prestressed concrete; Reinforced concrete;
- Available copies: 1 / Total copies: 1
-
unAPI
Results 1 to 3 of 3