Results 101 to 110 of about 7,633 (204)

An investigation of the beneficial effects of adding carbon nanotubes to standard injection grout [PDF]

, 2018
Mortar grouting is often used in masonry constructions to mitigate structural decay and repair damage by filling cracks and voids, resulting in an improvement in mechanical properties.
Ferro GA, Liberatore D, Lopez A, Restuccia L, Tulliani JM   +4 more
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Corrosion Behavior of Steel Embedded in Ternary Concrete Mixtures

International Journal of Electrochemical Science, 2011
The main reason for the premature failure of reinforced concrete structures is corrosion of the reinforcements. The use of new mortars based on ternary mixtures, an alternative to ordinary Portland cement (OPC), requires extensive research in order to ...
E.P. Reyes-Diaz, E. Maldonado B., F. Almeray C, D.M. Bastidas, M. Baltazar Z, J. Chacón N., A. Martínez-Villafañe, J.M. Bastidas, C. Gaona TiburcioT.   +8 more
doaj   +1 more source

New method to assess the pozzolanic reactivity of mineral admixtures by means of pH and electrical conductivity measurements in lime:pozzolan suspensions

Materiales de Construccion, 2014
A very simple method based on electrical conductivity and pH measurements was proposed for assessing reactivity of pozzolans. Calcium hydroxide:pozzolan water suspensions were monitored by means of measurements of electrical conductivity and pH values ...
M. M. Tashima, L. Soriano, J. Monzó, M. V. Borrachero, J. L. Akasaki, J. Payá   +5 more
doaj   +1 more source

Strength development of fly ash based composite material [PDF]

, 2007
The term „fly ash‟ is often used to describe any fine particulate material precipitated from the stack gases of industrial furnaces burning solid fuels.
Nayak, Prashant Kumar, V, Srikrishnan
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Effects of the secondary minerals of the natural pozzolans on their pozzolanic activity

Cement and Concrete Research, 2008
Abstract Natural pozzolans have been widely used as substitutes for Portland cement, because of their binding properties. Some of them are natural volcanic rocks which contain secondary minerals such as clays and zeolites corresponding to products of the alteration of the rock.
Habert, Guillaume, Choupay, N., Montel, J.M., Guillaume, D., Escadeillas, Gilles   +4 more
openaire   +3 more sources

Considerations about the use of lime-cement mortars for render conservation purposes [PDF]

, 2011
Some investigations about conservation renders points out that Portland cement based mortars should be avoided and should be replaced by lime-pozzolan mortars.
Faria, Joana, Jalali, Said, Pacheco-Torgal, F., Shasavandi, Arman   +3 more
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The influence of fly ash as substitute of cement in the durability of concrete [PDF]

, 2008
Limitation of transport capacity through the concrete is one of the key points in the improvement of the material’s durability. The use of fly ash as an admixture to concrete is widely extended; a general consensus has been established due to the pore ...
Guerrero Bustos, Ana, Gálvez Ruiz, Jaime, Molina Bas, Omar I., Moragues Terrades, Amparo   +3 more
core   +1 more source

Using metakaolin to improve the compressive strength and the durability of fly ash based concrete [PDF]

, 2011
Partial replacement of Portland cement by pozzolanic and cimentitious by-products or mineral additions that allow for carbon dioxide emission reductions is a major issue in the current climate change context.
Jalali, Said, Pacheco-Torgal, F., Shahsavandi, Arman   +2 more
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Evaluation of Foamed Concrete Properties Containing Engineered Pozzolans and Compressive Strength Prediction Through Artificial Neural Networks

International Journal of Concrete Structures and Materials
The performance of foamed concrete (FC) is significantly influenced by the type and proportion of supplementary cementitious materials (SCMs). However, comprehensive studies investigating the combined effects of engineered pozzolans on the thermal ...
Md. Azree Othuman Mydin, Nadhim Hamah Sor, Ziad N. Taqieddin, P. Jagadesh, Mustafa Al Bakri Abdullah, Paul O. Awoyera, Haytham F. Isleem, Olaolu George Fadugba, Taher A. Tawfik   +8 more
doaj   +1 more source

The effectiveness of palm oil fuel ash (POFA) to resist chloride ion in concrete [PDF]

, 2013
In nowadays construction, the demand for high performance and high durability of concrete is highly required to be used in reinforced concrete structure.
Mohd Zhafir, Mohd Jais
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