Results 31 to 40 of about 576 (177)

The difference between Sand and Pozzolana [PDF]

Journal of Roman Studies, 1913
In spite of the amount which recent publications have added to our knowledge of Roman building methods and materials, there is still some inaccuracy to be noted in the use of terms due very often to a misconception of the chemical constituents of the materials in question.
openaire   +2 more sources

Toughness increase of self compacting concrete reinforced with polypropylene short fibers

Materiales de Construccion, 2010
Increases in bending tests by the addition of low volume fractions of Polypropylene (PP) Short Fibers PP. These toughness increases are similar to those attained by Fiber Reinforced Concrete (FRC) referred elsewhere as Engineered Cementitious Composites (
G. Melián, G. Barluenga, F. Hernández-Olivares   +2 more
doaj   +1 more source

Investigation on the Potential of Bacteria‐Coated Jute Fiber for Enhancing Mechanical Properties and Self‐Healing Capabilities in Concrete

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Concrete faces challenges such as low tensile strength, susceptibility to cracking, and limited self‐healing capabilities. To address these issues, natural fibers have gained attention as reinforcements due to their high specific strength, stiffness, biodegradability, and renewability.
Tadelech Abrham Adisu, Belachew Asteray Demiss, Yemanebirhan Emiru Ashagrie, Tesfaye Alemu Mohammed, Yiglet Mebrat Getu, Dereje Hailu Tufa, Walied A. Elsaigh, Se Jin Choi   +7 more
wiley   +1 more source

A Quality Control Scheme for a Commercial Pozzolana Plant: A Case Study of Pozzolana Ghana Ltd

Ghana Journal of Science, 2019
A Quality control scheme was developed for a 200 ton per day commercial pozzolana plant. The scheme was evaluated for the first 34 days of production. Statistical Process Control tech­niques were specifically applied to the mechanical properties of setting times and compressive strength.
Sarfo-Ansah, J., Boakye, K. A., Atiemo, E., Appiah, R.   +3 more
openaire   +3 more sources

The Influence of Production Parameters on Pozzolanic Reactivity of Calcined Clays

Nordic Concrete Research, 2018
Calcined clays are gaining increasing interest as future supplementary cementitious materials for the production of blended cements. Besides the mineralogy, the right production conditions can affect the pozzolanic activity of calcined clays.
Danner Tobias, Justnes Harald
doaj   +1 more source

Investigation of Peculiarities in the Hardening Process of Portland Cements with Active Additives out of Waste

Medžiagotyra, 2011
This study deals with the impact of waste fluid cracking catalyst (FCC) and cupola dust (CD) on hardening process of various Portland cements (CEM I 42.5 R (PCR), CEM I 42.5 N (PCN), CEM II/A-S 42.5 N (PCSN)).
Jadvyga ŽVIRONAITĖ, Ina PUNDIENĖ, Valentin ANTONOVIČ, Valdas BALKEVIČIUS   +3 more
doaj   +1 more source

Effect of Cement Types on Mechanical Strength, Durability, and Unit Production Cost of Concrete

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
The primary aim of the present study is to identify the optimal cement type by jointly assessing mechanical performance, durability performance, and cost‐effectiveness using multicriteria decision‐making (MCDM) approaches. This study investigates the effects of four cement types commonly used in Bangladesh—CEM I/OPC, CEM II/A‐M (S‐V‐L), CEM II/B‐M (S‐V‐
Mohammad Shifat Hossain Khan, Mohammad Al Amin Siddique, Shikha Binwal   +2 more
wiley   +1 more source

Experimental Characterization and Numerical Performance Assessment of Treated Cinder Gravel for Base Course Applications

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
This study investigated the suitability of natural cinder gravel blended with fine‐crushed aggregates as a base course pavement material using laboratory tests and numerical simulations. Laboratory test results for natural cinder gravel indicated that cinder gravel alone failed to meet the Ethiopian Roads Authority (ERA) standard specifications for ...
Hawi Abdissa, Shelema Amena, Dekebi Chakeri, Damtew Tsige, Shikha Binwal   +4 more
wiley   +1 more source

A Review on Degradation Improvement of Sisal Fiber by Alkali and Pozzolana for Cement Composite Materials

Journal of Natural Fibers
Sisal fiber employment in concrete improves its post-crack strength, but sisal fiber degrades due to moisture and cement mineralization. Many researchers used alkaline and pozzolanic techniques to treat sisal fiber in cement composite materials. However,
Tsion Amsalu Fode, Yusufu Abeid Chande Jande, Thomas Kivevele, Nima Rahbar   +3 more
doaj   +1 more source

Effects of Partial Substitution of Ordinary Portland Cement With Stone‐Cutting Dust, Limestone, and Natural Pozzolana on Compressive Strength and Microstructure

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Rapid industrialization and urban growth have driven a rising demand for cement, yet ordinary Portland cement (OPC) production remains energy‐intensive and a major source of CO2 emissions. The partial substitution of OPC with supplementary cementitious materials (SCMs) offers a sustainable route to reduce environmental impact, production costs, and ...
Nancy Mweni Paul, Jackson Wachira Muthengia, Genson Murithi, Esther Wanja Nthiga, Joanne Ogunah, Reginah Wangui Ngari, Qian Fang   +6 more
wiley   +1 more source