PoolGeneralControlling Efflorescence
Jonathan E. Dongell and Jerry B. Werner
Read MoreEfflorescence typically manifests itself as a white salt deposit on the surface of a material.
GeneralDurability and Exposure Conditions of Cementitious Materials
Jonathan E. Dongell
Read MoreDeterioration Mechanisms
UndergroundGeneralDurability Investigation of Ultra-Rapid Strength-Gain Dry-Mix Shotcrete
Nicolas Ginouse and William Clements
Read MoreIt has already been shown that rapid strengthgain dry-mix shotcrete using calcium sulfoaluminate (CSA) cement and providing about 2900 psi (20 MPa) after only 2 hours can be effectively produced and placed in mining applications (Reny and Clements 2013).
GeneralEvaluating Ready Mix Suppliers
Mark Bradford
Read MoreOscar Duckworth has covered the keys of the equipment necessary for successful wet-mix shotcrete in the past few ?Nozzleman Know ledge? articles. This article discusses the importance of the material supplier in the equation.
GeneralThe Hidden Danger of Noise
Derek and Amanda L. Pay
Read MoreShotcrete workers are subject to noise, much of which is at potentially dangerous decibel levels.
RepairUndergroundStructuralGeneralThe Durability of Shotcrete? Looking Back at Projects from 30 to 40 Years Ago
Ted W. Sofis
Read MoreAnyone who has ever had to remove old gunite from a bridge or an overpass knows how incredibly difficult it can be to tear out.
GeneralA Closer Look at the Benefits of Predampening
Todd Ferguson
Read MoreMuch has been written on the benefits of predampening dry-mix shotcrete (gunite) materials before application; however, it is worth exploring these benefits in greater detail.
GeneralEffect of Pozzolanic-Based Rheology Control Agent as a Replacement for Silica Fume on Wet-Mix Shotcrete Performance
Ezgi Yurdakul and Klaus-Alexander Rieder
Read MoreThe purpose of this article is to present the performance evaluation of wet-mix shotcrete containing a pozzolanic-based rheology control (RC) agent as a replacement for silica fume (SF).
GeneralTesting Air Content of Dry-Mix Shotcrete
Lihe (John) Zhang
Read MoreIt has been well-established that the freezingand-thawing resistance of concrete is im- proved by air entrainment.
GeneralAmerican Shotcrete Association’s Board of Direction Position Paper #1
Charles S. Hanskat
Read MoreShotcrete Contractor and Crew Qualifications.