The use of glass powder as a partial Portland cement replacement

AbstractA quaternary supplementary cementitious materials as partial replacement of ordinary Portland cement decreases CO2 emission. This paper has investigated the properties of mortars made from different quaternary blends of wood ash, steel slag powder and glass powder with ordinary Portland cement at different replacement levels of 0, 24, 25, and 30% by weight of the binder. The blended mortar mixtures tested for flow, compressive strength and density. The results showed that the flow of mortars is decreased with the combined use of steel slag powder, glass powder, and wood ash compared with control mix. Compressive strength reduced with the combination of steel slag powder, glass powder and wood ash but this reduction effects is acceptable especially at 24% replacement contain super-plasticizer compared with the ecological benefit.

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Effect of Metakaolin on early Strength of GGBS Ternary Concrete

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.584-586.1551 ◽

2014 ◽

Vol 584-586 ◽

pp. 1551-1557

Author(s):

Noor Azline Mohd Nasir ◽

M.J. McCarthy

Keyword(s):

Adverse Effect ◽

Portland Cement ◽

Strength Development ◽

Replacement Level ◽

Cement Replacement ◽

Experimental Programme ◽

Early Strength

The article reports a laboratory experimental programme that investigated effect of metakaolin on the early strength of concrete made with ternary combinations of Portland cement (CEM I) with ground granulated blast slag (GGBS) and metakaolin (MK). The various level of cement combinations (65%CEM I+30%GGBS+5%MK, 45%CEM I+45%GGBS+10%MK and 45%CEM I+40%GGBS+15%MK) was examined in comparison to CEM I and equivalent GGBS binary concretes for up to 28 days. Results show that the reduction in early strength is greater with the higher cement replacement level. However, the ternary concrete containing 15%MK has minor increase in early strength compared to those with 10%MK but a significant increase in strength is examined at later age (28 days). It is concluded that the presence of MK compensates the adverse effect of GGBS at early strength development and improves the strength at later ages.

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Impact of combined use of ground glass powder and crushed glass aggregate on selected properties of Portland cement concrete

Construction and Building Materials ◽

10.1016/j.conbuildmat.2016.04.072 ◽

2016 ◽

Vol 117 ◽

pp. 263-272 ◽

Cited By ~ 59

Author(s):

Kaveh Afshinnia ◽

Prasada Rao Rangaraju

Keyword(s):

Portland Cement ◽

Glass Powder ◽

Ground Glass ◽

Portland Cement Concrete ◽

Cement Concrete ◽

Combined Use ◽

Glass Aggregate

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Studies on Exciting the Activity of Waste Glass Powder by Hydrothermal Activation

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.871.171 ◽

2013 ◽

Vol 871 ◽

pp. 171-178

Author(s):

Qing Qiu Kong ◽

Guo Jun Ke ◽

Dan Wang

Keyword(s):

Compressive Strength ◽

Hydrothermal Treatment ◽

Glass Powder ◽

Cement Mortar ◽

Waste Glass ◽

Early Age ◽

Cement Replacement ◽

Waste Glass Powder ◽

Temperature And Pressure ◽

Optimal Strength

The effect of hydrothermal activation indifferent temperature and pressure conditions on the pozzolanic activity of waste glass powder was discussed. The waste glass powder was treated at 108°C, 0.15MPa, 116°C, 0.18MPa and 121°C, 0.2MPa for 2h in an autoclave respectively after milling to 4215cm2/g. Mortar was made with untreated and hydrothermal activated waste glass power replacement of cement at 20% respectively, then tested for compressive strength at 3, 7, 14 , 28 and 90 days. Results showed that compressive strength of cement mortar had varying degrees of decline when replacing cement with untreated waste glass powder, comparing to the control one. Decline amplitude was large at early age and small at late age. Activity of waste glass powder was significantly improved after hydrothermal treatment. Compressive strength of mortar improved as temperature and pressure elevated, obtaining optimal strength at 121°C, 0.2MPa. Compressive strength of mortar with hydrothermal activated glass powder was higher than that with untreated glass powder at all age with 20% cement replacement. Compressive strength increased 5.3% ~ 13.6% at 3 d, 6.8%~9.7% at 28 d, 9.7% ~ 17.7% at 90 d. The essence of hydrothermal activation was the corrosion of water in the glass.

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A Review of Alkali-Activated Slag as Cement Replacement

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.803.262 ◽

2019 ◽

Vol 803 ◽

pp. 262-266

Author(s):

Osama Ahmed Mohamed ◽

Maadoum M. Mustafa

Keyword(s):

Compressive Strength ◽

Portland Cement ◽

Construction Industry ◽

Ordinary Portland Cement ◽

Environmental Footprint ◽

Alkali Activated Slag ◽

Cement Replacement ◽

Activated Slag ◽

Alkali Activated

Alkali activated slag (AAS) offers opportunities to the construction industry as an alternative to ordinary Portland cement (OPC). The production of OPC and its use contributes significantly to release of CO2 into the atmosphere while AAS is an industrial by-product that contributes much less to the environmental footprint that needs to be recycled if not landfilled. This paper outlines some of the key properties, merits and demerits of AAS when used as alternative to OPC. Competitive compressive strength of AAS concrete is amongst of the advantages of replacing cement with AAS while high shrinkage and carbonation levels are potential disadvantages.

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