|Statement||prepared by McAlpine Sea Services Limited.|
|Series||Offshore technology report ;, OTH 87 261|
|Contributions||Great Britain. Dept. of Energy., McAlpine Sea Services Limited.|
|LC Classifications||TC1665 .T94 1987|
|The Physical Object|
|Pagination||ix, 221 p. :|
|Number of Pages||221|
|LC Control Number||88176194|
Power-trowelleld concrete floors occasionally exhibit surface blemishes believed to be caused by the proximity to the furface of coarse aggregate particles. Water damage to Surface Book. Events: So I got caught in the torrential rain we had yesterday. My SB was inside a (not great) case, inside a backpack, along with some papers. I suspect water collected along the bottom of the bag (wet from the outside), which led to water damage to the SB along the short edge on one side. Initially around half. Guide to Identification and Control of Visible Surface Effects of Consolidation on Formed Concrete Surfaces ACI R chat_bubble_outline chat_bubble_outline. concrete qualification will also be renewable at the five year renewal point of the U or the U. The examination will consist of a 20 multi-choice question paper and assessment and reporting on eight photographs of typical concrete blemishes and reporting the possible cause, type and classification.
• The use of non-air-entrained concrete or too little entrained air. • Application of excessive amounts of calcium or sodium chloride deicing salts on concrete with inadequate strength, air entrainment, or curing. • Any finishing operation while bleed water is on the surface. Consequently, overworking the surface . Depending on the location of the blemishes, both approaches involve partially or fully draining the pool. Once drained, a powerful muriatic acid is applied to the interior finish. It strips away a thin layer of the plaster’s marcite material (marble dust) to remove surface stains and some textural abnormalities, such as calcium build up. A plain concrete surface will always have small visible blemishes, such as marks at the edges of the shutter surfacing, and the wall ties. Just had the same issue and unfortunately I am out of warranty. Microsoft said that they believe it to be a hardware issue and that since they had not received any other complaints that were similar to my situation, that they would not be able to do anything for me at this time outside of paying $ plus tax to get a refurb.
To minimize surface blemishes, vibrators must have the proper frequency, amplitude, power source and size. The forms themselves can cause blemishes. Absoptive forms tend to minimize entrapped air and voids in the finished concrete surface. This document provides guidelines for identifying and controlling visible effects on the surface of concrete as it relates to consolidation on precast or cast-in-place-formed concrete surfaces. A perfectly homogenous and blemish-free concrete element is difficult, if not impossible, to : ACI Committee For surface preparation, wear heavy boots and protective glasses and blast off surface dirt with a gas-powered pressure washer that can reach at least 3, psi. Fit the wand with a degree fan tip, and hold it 6 to 8 inches from the surface as you clean the concrete with slow, even sweeps. To remove mildew or algae, use a concrete wash. 2. the same time as the initial examination. The concrete qualification will also be renewable at the five year renewal point of the U. The examination will consist of a 20 multi-choice question paper and assessment and reporting on eight photographs of typical concrete blemishes .