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A platform for research: civil engineering, architecture and urbanism
Method for controlling water marks and chromatic aberration on surface of bare concrete and obtained bare concrete
The invention discloses a method for controlling surface watermarks and chromatic aberration of fair-faced concrete and the obtained fair-faced concrete.The method comprises the following steps that in the fair-faced concrete preparation process, a water reducing agent, water, an ether modifier and a silane reagent are mixed and stirred to be uniform, and then the mixture is used for preparation and production of the fair-faced concrete. According to the method, control over water waves and chromatic aberration on the surface of the bare concrete is achieved through the amphiphilic active water wave shielding technology and the compressed silica powder slurry internal redispersion technology, and the amphiphilic active water wave shielding technology enables components forming the water waves to be restrained and solidified in the concrete in the concrete forming stage so as to achieve shielding of the water waves; the surface wettability is improved and a same ion repulsion effect is generated by a compressed silica powder slurry internal redispersion technology, and the compressed silica powder slurry and the ether modifier generate a synergistic effect, so that the effective dispersion of the light admixture in the low-water-cement-ratio concrete slurry is realized, the consistency of the surface color of the fair-faced concrete is improved, and the formation of water waves and chromatic aberration on the surface of the fair-faced concrete is avoided.
本发明公开了一种控制清水混凝土表面水纹和色差的方法及得到的清水混凝土，包括以下步骤：在清水混凝土制备过程中，将减水剂、水、醚类改良剂以及硅烷类试剂混合搅拌均匀后，再用于清水混凝土的制备生产中。本发明通过采用双亲活性水纹屏蔽技术和压缩硅微粉浆内再分散技术实现清水混凝土表面水纹和色差的控制，双亲活性水纹屏蔽技术使形成水纹的成分在混凝土成型阶段约束固化在混凝土内部，以实现水纹的屏蔽；压缩硅微粉浆内再分散技术增加表面浸润性及产生同离子相斥效应，并与醚类改良剂产生协同作用，实现轻质掺合料在低水灰比混凝土料浆中的有效分散，提高了清水混凝土表面颜色的一致性，避免了清水混凝土表面水纹和色差的形成。
Method for controlling water marks and chromatic aberration on surface of bare concrete and obtained bare concrete
The invention discloses a method for controlling surface watermarks and chromatic aberration of fair-faced concrete and the obtained fair-faced concrete.The method comprises the following steps that in the fair-faced concrete preparation process, a water reducing agent, water, an ether modifier and a silane reagent are mixed and stirred to be uniform, and then the mixture is used for preparation and production of the fair-faced concrete. According to the method, control over water waves and chromatic aberration on the surface of the bare concrete is achieved through the amphiphilic active water wave shielding technology and the compressed silica powder slurry internal redispersion technology, and the amphiphilic active water wave shielding technology enables components forming the water waves to be restrained and solidified in the concrete in the concrete forming stage so as to achieve shielding of the water waves; the surface wettability is improved and a same ion repulsion effect is generated by a compressed silica powder slurry internal redispersion technology, and the compressed silica powder slurry and the ether modifier generate a synergistic effect, so that the effective dispersion of the light admixture in the low-water-cement-ratio concrete slurry is realized, the consistency of the surface color of the fair-faced concrete is improved, and the formation of water waves and chromatic aberration on the surface of the fair-faced concrete is avoided.
本发明公开了一种控制清水混凝土表面水纹和色差的方法及得到的清水混凝土，包括以下步骤：在清水混凝土制备过程中，将减水剂、水、醚类改良剂以及硅烷类试剂混合搅拌均匀后，再用于清水混凝土的制备生产中。本发明通过采用双亲活性水纹屏蔽技术和压缩硅微粉浆内再分散技术实现清水混凝土表面水纹和色差的控制，双亲活性水纹屏蔽技术使形成水纹的成分在混凝土成型阶段约束固化在混凝土内部，以实现水纹的屏蔽；压缩硅微粉浆内再分散技术增加表面浸润性及产生同离子相斥效应，并与醚类改良剂产生协同作用，实现轻质掺合料在低水灰比混凝土料浆中的有效分散，提高了清水混凝土表面颜色的一致性，避免了清水混凝土表面水纹和色差的形成。
Method for controlling water marks and chromatic aberration on surface of bare concrete and obtained bare concrete
控制清水混凝土表面水纹和色差的方法及得到的清水混凝土
ZHANG HUA (author) / GUAN SUMIN (author) / XIAO BO (author) / JING YAO (author) / WU XIN (author) / PENG WENBIN (author) / XIANG PENG (author) / ZHANG RONGHUA (author) / GUI GENSHENG (author) / JIANG XIAOJUN (author)
2022-03-08
Patent
Electronic Resource
Chinese
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