Results 211 to 220 of about 3,765 (253)

Enhancing Soil with Low-Cost Pozzolanic Materials: Rice Husk Ash and Groundnut Shell Ash Compared to Cement

Shaimaa M. Abdulrahman, Khalid W. Abd Al-Kaream, Elaf Abdul Azal Ihsan   +2 more
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Challenges and Performance of Filter Dusts as a Supplementary Cementitious Material. [PDF]

Materials (Basel)
Berger J, Mocciaro A, Cordoba G, Martinefsky C, Irassar EF, Beuntner N, Scherb S, Thienel KC, Tironi A.   +8 more
europepmc   +1 more source

INVESTIGATION OF THE POZZOLANIC POTENTIAL OF THE ORNAMENTAL STONE WASTE AFTER THERMAL TREATMENT AS CEMENT PASTE ADDITIVE

, 2015
Janaína dos Santos Vazzoler
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Life-Cycle Assessment and Environmental Costs of Cement-Based Materials Manufactured with Mixed Recycled Aggregate and Biomass Ash. [PDF]

Materials (Basel)
Agrela F, Rosales M, Alonso ML, Ordóñez J, Cuenca-Moyano GM.   +4 more
europepmc   +1 more source

Literature Study on the Potential of Rice Husk Ash as a Local Pozzolanic Material in Concrete

Politeknik Negeri Jakarta, M. Nisa, Ansadilla Niar Sitanggang, Universitas Esa Unggul   +3 more
openalex   +2 more sources

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Natural Pozzolans

2017
This chapter is dedicated to several kinds of natural pozzolans that occur around the globe and describes their specific characteristics, origin and use in concrete. Moreover, the advantages and disadvantages of their use in concrete mixes are highlighted in terms of concrete properties. In particular, the referenced properties in this chapter are that
Dedeloudis, C., Zervaki, M., Sideris, K., Juenger, M., Alderete, N., Kamali-Bernard, Siham, Villagrán, Y., Snellings, R.   +7 more
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Pozzolana and Pozzolanic Cements—A Review Part—II: Pozzolanic Cements

Transactions of the Indian Ceramic Society, 1983
In this review pozzolanic cements have been discussed. A certain amount of pozzolana can be mixed with Portland cement to yield pozzolanic cements and thus the mixture becomes economic as well as inter-reactive. The specific advantages are its better strength, improved workability, less heat of hydration, less shrinkage and greater resistance to ...
C. Samanta, M. K. Chatterjee
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Pozzolanic activity of natural pozzolan–lime pastes and physicomechanical characteristics

Journal of Thermal Analysis and Calorimetry, 2018
In order to evaluate the pozzolanic activity of a natural pozzolan (NP) of rhyolitic composition, several pastes were prepared by mixing the pozzolan with hydrated lime, in different ratios. The pastes were stored in standard conditions (RH = 99 ± 1%, T = 25 ± 1 °C) and evaluated using thermal analysis (TG-DTA), X-ray diffraction, compressive strength ...
Asterios Bakolas, Eleni Aggelakopoulou
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Pozzolanic activity tests as a measure of pozzolans' performance. Part 1

Magazine of Concrete Research, 2007
The current methodologies used for the selection and classification of pozzolans present certain chemical and physical requirements that may restrict their use. A good example of this is the use of the pozzolanic activity index as the main parameter in the selection and classification of pozzolans. This is determined by several different methodologies
G. P. Gava, L. R. Prudêncio
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Pozzolanic activation of metakaolin

Advances in Cement Research, 1992
Metakaolin may be calcined without grinding and suitably activated by Ca(OH)2, Na2SO4, CaSO4 (beta anhydrite) and/or NaOH. The best strengths, 50 MPa from mortar cubes at 18 months, were obtained using Ca(OH)2 and CaSO4 activators. The handling and set properties are similar to those of Portland cement; aluminous C-S-H gel is the best binder.
P. S. De Silva, F. P. Glasser
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