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Guide Specification for High Performance Concrete …
Guide Specification for High-Performance Concrete for Bridges FIRST EDITION by Michael A. Caldarone, Peter C. Taylor, Rachel J. Detwiler, and Shrinivas B. Bhidé
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Fire and Concrete Structures - Portland Cement …
www.cement.orgSteel Reinforcing steel is much more sensitive to high temperatures than concrete. Figure 3 shows the effect of high temperature on the yield strength of steel.
Fire and Concrete Structures - cement.org
www.cement.orgThe fire resistance (based on the heat transmission end point) of a concrete member or assembly is found by calculating the equivalent thickness for the assembly and then finding the corresponding rating in the charts and tables provided.
RADIANT HEAT WITH CONCRETE - Portland Cement …
www.cement.orgof heating address the heat loss of the structure, while radiant floor systems address the heat loss of the human body. Radiant floors take advantage of concrete’s thermal mass: they absorb and store heat, then conduct it directly to the feet and to objects in the room that in turn re-radiate heat. Radiant heat warms objects, not just the air ...
Solar Reflectance Values of Concrete
www.cement.orgshows samples of the fine and coarse aggregates. Except for white portland cement, the portland cements were about the same shade of gray (Fig. 1). Individual particles of fine aggregate (typically erosion sediment largely consisting of granite, quartz, and feldspar) varied in color, and the lightest color fine aggregate was limestone (Fig. 2).
CONCRETE SEPTEMBER - cement.org
www.cement.orgother more energy-efficient building material ... dent of the Portland Cement Association (PCA). As a baseline, “Buildings with concrete external walls use up to 40 percent less energy than wood frame buildings,” he says. According to market research recently con- ... to build energy-efficient homes will have a major impact: “If these ...
Portland Cement Association TROWEL TIPS …
www.cement.orgMortar mixed to a laboratory flow consistency of 110 ± 5 percent as required for determination of compressive strength according to ASTM C270 property requirements
Efflorescence - Portland Cement Association
www.cement.orgEfflorescence Efflorescence is particularly affected by temperature, humidity, and wind. In the summer, even after long rainy periods, moisture
Guide to FULL-DEPTH RECLAMATION (FDR)
www.cement.orga new base layer. The FDR process begins with using a road reclaimer to pulverize an existing asphalt pavement and a portion of the underlying base, subbase, and/or subgrade. Usually the pulverized material is uniformly blended with an additional stabilizing material such as portland cement to provide an upgraded, homogeneous material.
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www.bridgeforum.org1. Introduction There are over 180 reinforced concrete slab bridges under the jurisdiction of the Roads and Traffic Authority of New South Wales (RTA).
Concrete Bridges - Transportation Research Board
onlinepubs.trb.orgclose to 200 segmental concrete bridges have been built or are ... such as fiber-reinforced ... In early applications of prestressed concrete to bridges, ...
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