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Thermal activation of ordinary Portland cement–slag mortars

✍ Scribed by Fathollah Sajedi; Hashim Abdul Razak

Publisher
Elsevier Science
Year
2010
Weight
338 KB
Volume
31
Category
Article
ISSN
0261-3069

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📜 SIMILAR VOLUMES

Comparison of different methods for acti
Comparison of different methods for activation of ordinary Portland cement-slag mortars
✍ Fathollah Sajedi; Hashim Abdul Razak 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 758 KB

This paper compares three methods for activation of OPC-slag mortars (OSM): (1) prolonged grinding of binders (mechanical method), (2) elevated temperature curing of mortars (thermal method), and (3) use of chemical activators such as NaOH, KOH, and Na 2 SiO 3 , 9.35H 2 O (chemical method). The prop

The effect of chemical activators on ear
The effect of chemical activators on early strength of ordinary Portland cement-slag mortars
✍ Fathollah Sajedi; Hashim Abdul Razak 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 557 KB

Although the use of slag has many benefits, its low hydration at early stages causes the strength to be low. Hence, the uses of slag are restricted, even before it needs to be activated. In this investigation, a chemical method was used to activate the ordinary Portland cement-slag mortars (OSM). 37

Thermal acceleration of Portland cement
Thermal acceleration of Portland cement mortars with microwave energy
✍ R.G. Hutchison; J.T. Chang; H.M. Jennings; M.E. Brodwin 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 227 KB

The use of microwave energy as a source of heat to accelerate curing of ordinary Portland Cement mortar was investigated. Shortly after casting, specimens were treated with different levels of microwave power. Microwave heating produced an increase in temperature that shortened the induction perio

Electrical conductivity of Portland ceme
Electrical conductivity of Portland cement mortars
✍ Peter J. Tumidajski 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 374 KB

Mortars containing volume fractions of aggregate less than 0.35 were prepared at w/c = 0.35, 0.40, and 0.45 and hydrated for 1, 14, and 28 days. Mortar electrical conductivities were determined by impedance spectroscopy, and the experimental data were fitted to the polynomial, where, (I, is the mort

Effects of curing regimes and cement fin
Effects of curing regimes and cement fineness on the compressive strength of ordinary Portland cement mortars
✍ Fathollah Sajedi; Hashim Abdul Razak 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 658 KB

Curing techniques and curing duration have crucial effects on the strength and other mechanical properties of mortars. Proper curing can protect against moisture loss from fresh mixes. The objective of this experimental work is to examine the compressive strength of ordinary Portland cement mortars