News Updates
Specializing in the R&D and design of high-quality sand and gravel aggregate shaping, sand-making equipment, and recycled aggregate production.
The company has more than 150 employees, and its senior management team all boasts over ten years of experience in the industry.
Release date:
2021-09-15
Sand and gravel gradation refers to the quantitative proportion among particles of varying sizes within an aggregate. Particle size is typically determined by sieving, in accordance with JGJ 52-2006.
Sand and gravel gradation refers to the quantitative proportion among particles of varying sizes within an aggregate. Particle size is typically determined by sieving, in accordance with JGJ 52-2006 (Standard for Quality and Test Methods of Sand and Coarse Aggregate for Ordinary Concrete) and GB/T 14684-2011 (Standard for Construction Sand). A well‑graded aggregate must meet the following basic requirements:
Porosity
Minimizing porosity can reduce the amount of cement and other powdered materials used, while maintaining concrete performance.
Related News
Contact Information
Service Hotline:021-58618688
Corporate email:webmaster@pugao.com
Address: No. 768, Gangcheng Road, Waigaoqiao, Pudong New Area, Shanghai
©2026 Shanghai Pugao Engineering (Group) Co., Ltd.