Field research original data
摘要
The dataset consists of five Excel files, each corresponding to one of the five regions of Shandong Province: Eastern, Western, Southern, Northern, and Central Shandong. Each data file encompasses the following detailed information for concrete grades C25 to C60:(1) Mix Design: Precise mix proportions.(2) Raw Materials: Specifications including brand, manufacturer, and classification.(3) Logistics: Transportation methods and distances.(4) production Process: Specifications of the mixing equipment and mixing duration.This dataset will be continuing to be updated annually.
引用本文（GB/T 7714）
Zhou Juan. Field research original data[J]. ScienceDB, 2025.
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