Results 91 to 100 of about 3,765 (253)

Technical feasibility in the use of waste of blasting abrasive as fine aggregate in concrete

open access: yesRevista de Engenharia Civil IMED, 2019
In petrochemical industry, the step of abrasive blasting in naphtha storage tanks, in preparation of the surface for application of anti-corrosion coatings generate, by intervention in each tank, approximately 100 tons of waste classified as class II A ...
Eduardo Polesello   +1 more
doaj   +1 more source

Stabilisation of Sulfide‐Bearing Clays as a New Building Ground

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 1, January–February 2026.
ABSTRACT Fine‐grained, sulfide‐bearing marine clays are found along the Finnish coastline. When excavated and exposed to air, the sulfides within these soils react with oxygen to form sulfuric acid. Such soils are classified as hypersulfidic soils.
Thomas Kronberg   +4 more
wiley   +1 more source

Influence of particle size distribution of slag, limestone and fly ash on early hydration of cement assessed by isothermal calorimetry [PDF]

open access: yes, 2016
Supplementary cementitious materials (SCMs) enhance early hydration of cement through the provision of nucleation sites for the precipitation of hydration products.
Alderete, Natalia Mariel   +3 more
core   +1 more source

STUDY ON PASTES AND MORTARS OF PORTLAND CEMENT WITH REPLACEMENT BY SANITARY WARE

open access: yesAvances en Ciencias e Ingeniería, 2016
In this paper the Sanitary Faience, use as a replacement for portland cement is analyzed. Replacements used were 8, 24 and 40% by weight; the assays used contemplated the evolution of hydration from the first minutes (up to 48 hours) by calorimetry, and ...
Silvina Zito   +2 more
doaj  

Properties and durability of metakaolin blended cements

open access: yesMateriales de Construccion, 2010
This paper evaluates the optimal calcination temperature and replacement ratio to ensure high metakaolin (MK) pozzolanicity in blended cement. The MK used was prepared by firing two types of local at temperatures ranging from 700 to 850 ºC. Dry blends of
Salah A. Abo-El-Enein   +2 more
doaj   +1 more source

Possible reusing of household ceramic wastes as mineral admixtures in ecological cement/concrete [PDF]

open access: yes, 2016
Both the Ceramic wastes and the pollution of the cement industry can cause strong damage to the environment and the sustainable development. In the present study, the pozzolanic activity of household ceramic waste powder was investigated by SAI test ...
Azevedo, Cecília   +3 more
core  

Argamassas antigas: reacção pozolânica ou activação alcalina? [PDF]

open access: yes, 2007
No presente artigo procede-se a uma análise das explicações clássicas relativas à durabilidade das argamassas antigas. A grande maioria das descrições sobre as argamassas antigas, nomeadamente sobre o período referente à civilização romana, refere-se à ...
Gomes, J. P. Castro   +2 more
core  

Permeabilidad y estructura porosa de hormigones autocompactantes de resistencia moderada [PDF]

open access: yes, 2010
El hormigón autocompactante ha experimentado un amplio desarrollo en los últimos años. Los estudios sobre este hormigón se han centrado en obtener dosificaciones óptimas, mientras los relativos a su durabilidad son escasos, especialmente en el caso de ...
Bermejo Núñez, Ester B.   +3 more
core   +3 more sources

The Comparison of Using Andesite Waste Powder and Fly Ash in Concrete

open access: yesDoğal Afetler ve Çevre Dergisi, 2019
Andesite stone is widely used in civil engineering and architectural applications in Turkey. The production, cutting and polishing of the andesite stone by mining methods causes a large amount of waste. Some of them are big particular waste that is taken
Hakan Ceylan, Metin Davraz
doaj   +1 more source

Potential reuse of recovered nonmetallic printed circuit board waste as sand replacement in construction materials [PDF]

open access: yes, 2014
The study analyzed the treatment of nonmetallic printed circuit board (PCBs) by adding them into mortar cement and cement brick as sand replacement. This study aims to propose methods for reuse of nonmetallic PCBs waste.
Mohamad, Siti Suhaila
core  

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