Core TradesCâu 128 / 700
A slump test on fresh concrete is performed primarily to measure the concrete's:
a.Consistency and workability
b.Compressive strength
c.Entrained air content
d.Cement content
Giải thích
The slump test measures consistency (how far the cone of concrete settles), which reflects workability and indirectly the water content. Compressive strength is measured by breaking cured cylinders, air content by a separate pressure/roll test, and cement content by mix design, not by slump.
Trích dẫn luật: 2025 CA Building Code, Chapter 19 (ASTM C143)Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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