Finish TradesCâu 483 / 700
For very narrow tile joints (about 1/16 to 1/8 inch), which grout type is generally the BEST choice?
a.Unsanded grout
b.Coarse sanded grout
c.Dry-pack mortar bed mix
d.Structural concrete
Giải thích
Unsanded grout flows into and fills very narrow joints smoothly, while the sand in sanded grout is too coarse and can bridge or scratch the tile in tight joints. Dry-pack mortar and structural concrete are bedding or structural materials, not finish grout for narrow joints.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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