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Resistance of chemically-activated high phosphorous slag content cement against freeze–thaw cycles
Abstract This paper presents an estimation of the resistance of chemically-activated high phosphorous slag content cement mortar against freeze–thaw cycles. Two hundred fifty cycles of freezing and thawing were executed in accordance with ASTM C666 procedure B to assess the frost resistance of the mortar prisms. Measurements of water absorption, open pore volume, and compressive strength were performed on both chemically-activated high phosphorous slag content cement and standard Portland cement mortar prisms to evaluate the extent of deterioration and to compare the durability performance of the two cements. Interfacial transition zone between paste and aggregate of the mortar prisms was studied by scanning electron microscopy. The obtained results, however, showed a relatively weaker durability performance for chemically-activated high phosphorous slag content cement mortar against freeze–thaw cycles in spite of its higher compressive strength.
Graphical abstract Display Omitted
Highlights The frost resistance of a chemically activated slag cement has been studied. The slag cement was formulated based on a high content of phosphorous slag. The slag cement was chemically activated using sodium sulfate and anhydrite. Mortar prisms of Portland cement were used as reference.
Resistance of chemically-activated high phosphorous slag content cement against freeze–thaw cycles
Abstract This paper presents an estimation of the resistance of chemically-activated high phosphorous slag content cement mortar against freeze–thaw cycles. Two hundred fifty cycles of freezing and thawing were executed in accordance with ASTM C666 procedure B to assess the frost resistance of the mortar prisms. Measurements of water absorption, open pore volume, and compressive strength were performed on both chemically-activated high phosphorous slag content cement and standard Portland cement mortar prisms to evaluate the extent of deterioration and to compare the durability performance of the two cements. Interfacial transition zone between paste and aggregate of the mortar prisms was studied by scanning electron microscopy. The obtained results, however, showed a relatively weaker durability performance for chemically-activated high phosphorous slag content cement mortar against freeze–thaw cycles in spite of its higher compressive strength.
Graphical abstract Display Omitted
Highlights The frost resistance of a chemically activated slag cement has been studied. The slag cement was formulated based on a high content of phosphorous slag. The slag cement was chemically activated using sodium sulfate and anhydrite. Mortar prisms of Portland cement were used as reference.
Resistance of chemically-activated high phosphorous slag content cement against freeze–thaw cycles
Allahverdi, Ali (author) / Abadi, Mohammad Mahdi Bahri Rasht (author) / Anwar Hossain, Khandaker M. (author) / Lachemi, Mohamed (author)
Cold Regions, Science and Technology ; 103 ; 107-114
2014-03-29
8 pages
Article (Journal)
Electronic Resource
English
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