T/ZJBMQA 002-2018 Active Group standards

T/ZJBMQA 002-2018 Colored pre-mix concrete

Publish Date: 2018-09-13 Implement Date: 2018-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZJBMQA 002-2018

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Building materials products

ICS Name: Concrete and concrete products

Publish Date: 2018-09-13

Implement Date: 2018-10-01

Scope

Scope: This standard specifies the terms and definitions, classification, performance grades, and marking of colored ready-mixed concrete; its raw materials; quality requirements; preparation; test methods; inspection rules; and ordering and delivery. This standard applies to colored ready-mixed concrete. This standard does not include the pouring, tamping, and curing of colored ready-mixed concrete after delivery. Main Technical Content: 3. Terms and Definitions The following terms and definitions apply to this document: 3.1 Colored Ready-Mixed Concrete Colored ready-mixed concrete prepared using ordinary Portland cement or white Portland cement, coarse and fine aggregates, and water as main materials, with the addition of appropriate mineral admixtures, additives, and colorants as needed. 3.2 CIELAB Color Space and Color Difference Units The CIELAB color space, recommended by the CIE in 1976, is a three-dimensional orthogonal coordinate system that represents the same perceptual color difference at the same distance. The colorimetric coordinates are represented by L*, a*, and b*. The color difference in the CIELAB color space is measured using ΔE*ab, and the color difference unit is the CIELAB color difference unit. 3.3 Color Difference The difference in surface color between the color reference sample and the color test sample. 3.4 Color Reference Sample A color reference sample used as the reference color during color difference testing. 3.5 Color Test Sample A color test sample used for color difference testing. 3.6 Color Weather Fastness The ability of a color to resist changes under external climatic factors such as sunlight and wind/rain. 3.7 Delivery Place The location specified in the contract for the transfer of colored ready-mixed concrete between the supplier and the purchaser. 3.8 Factory Inspection An inspection of the quality of colored ready-mixed concrete before it leaves the factory. 3.9 Delivery Inspect