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This standard is intended for use by coating or lining specifiers, applicators, inspectors, or others who require the use of pressurized water cleaning technology to achieve a defined level of visual cleanliness of concrete surfaces. This standard contains requirements for Thorough Cleaning. Requirements for Light Cleaning are addressed in a separate standard.
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On-site measurement of the surface profile of abrasive blast cleaned steel. Compares with lab measurements on surfaces rated as NACE Nos. 1, 2, or 3 standards. Implementation. Historical Document 1995
This paper will evaluate methods used to measure surface profiles created by power tools, namely air needle scalers, bristle cleaners, and roto peen scalers. Particular focus will be placed on the use of replica tape and its ability to characterize profiles of various surfaces using a digital replica tape reader with 3D imaging capability. More specifically, this paper will determine if the measurement methods described in ASTM D44171are appropriate for the measurement of profiles produced by power tools.
What exactly is involved when designing and installing a liner for concrete structures below grade? Does the structure need to be damp proofed? What testing protocols should or shouldn't be specified and when should they be performed. What type of surface prep should be done and why is surface profile so important? What type of liner has the best performance properties for below grade concrete? Why liner curing time, thickness and resistance to moisture is important. These are several questions that should be answered when beginning to specify a lining project