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dc.contributor.authorNguyễn, Thành Đoàn-
dc.contributor.authorNguyễn, Thị Kim Dung-
dc.contributor.authorLê, Thị Hiên-
dc.contributor.authorTrần, Thị Thanh Thảo-
dc.contributor.authorNguyễn, Thị Thanh Huyền-
dc.contributor.authorLê, Thị Minh Hằng-
dc.description.abstractIn this study limestone powders with different particle sizes of 1.6 and 4.5 (m were ust'd to replace a part of Portland cement in different replacement levels to produce Portland-limesPne cement pastes. The percentages of limestone replacement are 0, 5, 10, 15 and 20% by weight. The effect of fineness and the amount of limestone powders on compressive strength and set¬ting time are investigated. It has been established that limestone replacement causes reduce the compressive strength due to the dilution effect. The fineness of limestone powder used has influ-ence on the observed compressive strength values. Both initial and final setting times were increased with an Increase in the amount of limestone. Furthermore, at the same level replace¬ment the cement pastes using 1.6 pm of limestone show lower setting time than that using 4.5 pm, respectively.vi_VN
dc.relation.ispartofseriesTạp chí Công nghiệp - Hóa chất;Số 06 .- Tr.38-43-
dc.subjectĐá vôivi_VN
dc.subjectXi măng póoclăng hỗn hợpvi_VN
dc.subjectĐộ bền nénvi_VN
dc.subjectThời gian đông kếtvi_VN
dc.subjectVi cấy trúcvi_VN
dc.titleẢnh hưởng của bột đá vôi đến tính chất của xi măng Póoc Lăngvi_VN
Appears in Collections:Công nghiệp Hóa chất

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