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Sharing the construction methods for castables and common types of admixtures
Release date:
2020-11-12
There are numerous factors influencing the use of castables, ranging from material selection and construction techniques to curing processes. Additionally, various admixtures are often added during the application of castables to modify their structure and enhance their performance. With many types of admixtures commonly used, today we’ll provide a detailed introduction to the castable construction methods as well as an overview of the functions and applications of these admixtures. 1. Pouring Construction Method (1) Inspection: First, ensure that the formwork is properly set up without any gaps or misalignments. Clean out all debris inside the mold thoroughly. Verify that anchor bolts are securely welded in place, and apply a coat of paint or wrap them with plastic bags to cushion against expansion forces caused by heat. (2) Pouring: Carefully pour the mixed castable material into the mold, then proceed with the next step—vibration or compaction.
There are numerous factors influencing the use of castables, ranging from material selection and construction techniques to curing processes. Additionally, various admixtures are often added during application to modify the material's structure and enhance its performance. With many types of admixtures commonly used, today we’ll provide you with a detailed overview of castable construction methods as well as an in-depth look at the functions and applications of these additives.
1. Pouring Construction Method
(1) Inspection: Verify that the mold is properly supported, with no gaps or misalignments. Clean out any debris inside the mold, and ensure that anchor components are securely welded. Finally, coat the surface of the anchor components with paint or wrap them in plastic bags to cushion against expansion forces caused by heat.
(2) Pouring: Pour the mixed casting material into the mold and insert a vibrating rod to compact it. Ensure the vibration rod is moved at a consistent speed, and pull it out slowly.
(3) If the pouring area is too large, it can be poured in layers and sections simultaneously with overlapping operations. For walls, pour in layers, with each layer being approximately 900 mm high. The furnace roof should be poured in separate sections before being lifted into place laterally.
(4) Curing and Demolding: When the ambient temperature is above 20°C, demolding can be done after 4 hours; at temperatures below 20°C, curing should continue for 6–7 hours before demolding. If any localized edges or corners are damaged, repairs can be carried out.
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Zhengzhou Yadesheng Refractory Materials Co., Ltd.
Address: Chaohua Town, Xinmi City, Henan Province, China
Tel:+86-0371-69236228(Sales)
phone:+86-3903863827
Email:fengjianmin6@163.com