Results 11 to 20 of about 411 (188)

Effect of the Fineness of Artificial Pozzolana (Sarooj) on the Properties of Lime-Pozzolana Mixes

Sultan Qaboos University Journal for Science, 2002
Strength development of lime-pozzolana mortars is affected by the fineness of the pozzolan. This paper examines the effect of the fineness of artificial pozzolana on the strength development of lime-pozzolana mixtures. An artificial pozzolana produced by
Abdel Wahid Hago, Amer Ali Al-Rawas, Awadh Al-Sidairi   +2 more
doaj   +3 more sources

Taftan Pozzolan-Based Geopolymer Cement

International Journal of Industrial Engineering and Production Research, 2008
: In recent years, many research works have been done to investigate the possibility of utilizing a broad range of materials as raw materials in the production of geopolymer cements.
A. Allahverdi, K. Mehrpour, E. Najafi Kani   +2 more
doaj   +1 more source

Optimization of concrete design mixing artificial pozzolan based on orthogonal test [PDF]

Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering, 2015
In this paper, 42.5 sulfate aluminate cement mixing pozzolan was used to prepare fast early strength concrete to reduce the application costs by the equivalent of cement, Pozzolan content, sand ratio, water-cement ratio investigated by orthogonal experiment method to seek meet with the strength （%）
Yang Zhang, Baoshi Jiang
openaire   +2 more sources

Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]

Glob Chall
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I, Santacruz I, De la Torre AG, Rodríguez-Ruiz MD, Aranda MAG.   +4 more
europepmc   +2 more sources

Performance characteristics of concrete containing natural and artificial pozzolans

, 2011
In this research, the effects of natural zeolite (NZ) and rice stalk ash (RSA) as Portland cement replacement materials on properties of cement were investigated using three different combinations (NZ, RSA, NZ+RSA) of tests. These materials were used as substituted for Portland cement in different proportions, and then physical, mechanical and thermal ...
Şişman, Can Burak, Gezer, Erhan
openaire   +2 more sources

Yapay Puzolanların Kendiliğinden Yerleşen Betonlarda Kapilarite ve Basınç Dayanımına Etkisi

Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014
Bu çalışmada iki farklı yapay puzolanın kendiliğinden yerleşen betonlarda kapilarite ve basınç dayanımına etkisi araştırılmıştır. Çalışmada yapay puzolan olarak uçucu kül ve yüksek fırın cürufu %20,%40 ve %60 oranında çimentoya ikame edilerek ...
Ahmet Beycioğlu, H. Yılmaz Aruntaş
doaj   +6 more sources

ANN modelling approach for predicting SCC properties - Research considering Algerian experience. Part I. Development and analysis of models

Journal of Building Materials and Structures, 2020
This paper presents research on the use of artificial neural networks (ANNs) to predict fresh and hardened properties of self compacting concrete (SCC) made with Algerian materials.
Mohamed Sahraoui, Tayeb Bouziani
doaj   +1 more source

Recovery and restoration potential of cold‐water corals: experience from a deep‐sea marine protected area

Restoration Ecology, Volume 31, Issue 8, November 2023., 2023
Cold‐water corals (CWCs) are important species that provide habitat for other taxa but are sensitive to mechanical damage from bottom trawling. CWC conservation has been implemented in the form of marine protected areas (MPAs), but recovery from impact may be particularly slow in the deep‐sea environment; consequently, the use of restoration techniques
James A. Strong, Nils Piechaud, Laurence H. De Clippele, Brian J. Bett, Tammy Horton, Guillem Corbera, Veerle A. I. Huvenne   +6 more
wiley   +1 more source

Data‐driven prediction of room‐temperature density for multicomponent silicate‐based glasses

Journal of the American Ceramic Society, Volume 106, Issue 7, Page 4142-4162, July 2023., 2023
Abstract Density is one of the most commonly measured or estimated material properties, especially for glasses and melts that are of significant interest to many fields, including metallurgy, geology, materials science, and sustainable cements. Here, three types of machine learning models (i.e., random forest [RF], artificial neural network [ANN], and ...
Kai Gong, Elsa Olivetti
wiley   +1 more source

Development of artificial hydraulic lime [PDF]

Нанотехнологии в строительстве
Introduction. Lime mortars used for the restoration of historical buildings are characterized by low resistance during operation. The durability of lime solutions can be increased by using hydraulic lime as a binder.
Valentina I. Loganina, Irina A. Garkina, Evgenia V.Tkach, Irina V. Stepina   +3 more
doaj   +1 more source