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David Suescum-Morales, José Ramón Jiménez and José María Fernández-Rodríguez
In recent decades, the environmental impact caused by greenhouse gases, especially CO2, has driven many countries to reduce the concentration of these gases. The study and development of new designs that maximise the efficiency of CO2 capture continue to...
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Farhan Ahmad, Sanket Rawat and Yixia Zhang
Magnesium oxychloride cement (MOC), an alternative to ordinary Portland cement (OPC), has attracted increasing research interest for its excellent mechanical properties and its green and sustainable attributes. The poor water resistance of MOC limited it...
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Dany Kassim, Ghandy Lamaa, Rui Vasco Silva and Jorge de Brito
The use of electric arc furnace slag (EAFS) as sole precursor to produce alkali-activated mortars has been experimentally investigated. EAFS, a by-product of the steel recycling industry, is a coarse material with unevenly distributed and size-extensive ...
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Yung-Chih Wang, Ming-Gin Lee, Wei-Chien Wang, Yu-Cheng Kan, Shih-Hsuan Kao and Hsien-Wen Chang
This study was to evaluate the CO2 curing on mechanical properties of Portland cement concrete. Three different specimen sizes (5 × 10 cm, 10 × 20 cm, and 15 × 30 cm cylinders), three CO2 concentrations (50%, 75%, 100%), three curing pressures (0.2, 0.4,...
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Lingling Hu, Zhen Chen and Jun Hu
The development of sustainability and high toughness in cement-based composites with polypropylene (PP) fiber is becoming increasingly important for future buildings, while CO2-curing treatment at early ages is precisely a promising technique for it. The...
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Haitham M. Ahmed, Mohammed A. Hefni, Hussin A. M. Ahmed and Hussein A. Saleem
This study investigates the effect of the partial replacement of ordinary Portland cement (OPC) with cement kiln dust (CKD) on the engineering properties of pozzolanic concrete for use in block manufacturing. Ultimately, this could potentially reduce cem...
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Ramamohana Reddy Bellum, Ruben Nerella, Sri Rama Chand Madduru and Chandra Sekhar Reddy Indukuri
Cement is one of the construction materials widely used around the world in order to develop infrastructure and it is also one of the factors affecting economies. The production of cement consumes a lot of raw materials like limestone, which releases CO2...
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Pedro Castro Borges, Lucien Veleva
Pág. 65 - 71
Material surface time of wetness (TOW) and temperature (T) are criticalvariables that influence the corrosion behavior of reinforced steelbars in concrete, and concrete durability. In concrete structures, bothvariables are indirectly dependent on the atm...
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Ricardo Infante Gomes, David Bastos, Catarina Brazão Farinha, Cinthia Maia Pederneiras, Rosário Veiga, Jorge de Brito, Paulina Faria and António Santos Silva
Construction and demolition wastes (CDW) are generated at a large scale and have a diversified potential in the construction sector. The replacement of natural aggregates (NA) with CDW recycled aggregates (RA) in construction materials, such as mortars, ...
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Nabil Bella, Edwin Gudiel, Lourdes Soriano, Alba Font, María Victoria Borrachero, Jordi Paya and José Maria Monzó
Worldwide cement production is around 4.2 billion tons, and the fabrication of one ton of ordinary Portland cement emits around 900 kg of CO2. Blast furnace slag (BFS) is a byproduct used to produce alkali-activated materials (AAM). BFS production was es...
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Henrique Comba Gomes, Elvys Dias Reis, Rogério Cabral de Azevedo, Conrado de Souza Rodrigues and Flávia Spitale Jacques Poggiali
The construction industry is essential to the development and economy, but is also the largest generator of construction and demolition waste (CDW). While efforts are made to minimize such generation, the construction industry has been developing applica...
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Gabriela Rutkowska, Mariusz Zóltowski, Konstantin Rusakov, Katarzyna Pawluk, Joanna Andrzejak and Bogdan Zóltowski
CO2 emission limits introduced by the European Union are encouraging works on new-generation materials with reduced clinker content. Currently, fumed silica from hard coal combustion is used in cement and concrete technology in Europe and Poland. Its wid...
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Temple Chimuanya Odimegwu, A. B. M. A. Kaish, Maslina Jamil, M. F. M. Zain, Asset Turlanbekov and Ahmed W. Al Zand
This study evaluated the effect of alum sludge as an alternative to fly ash in fabricating geopolymer paste and mortar. The blending of this industrial waste (alum sludge and fly ash) is not only for the benefit of sustainable construction and disposal o...
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Shiquan Li, Yu Chen, Can Tang, Jinyuan Wang, Ronggui Liu and Haojie Wang
Carbonization coefficient research has great significance in concrete carbonization evaluation. Nano-silica (NS) can reduce the content of Ca(OH)2, which is generated during the hydration of concrete, resulting in improved carbonization resistance and co...
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Haibin Li, Canyang Cui, Jun Cai, Mingming Zhang and Yanping Sheng
Steel slag (SS) is industrial waste, and there is a large amount of SS to be treated in China. Its disposal generates severe environmental pollution. One of the best ways to use SS is as a road base material. This paper reviews the possibility of using S...
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Luqman Kolawole Abidoye and Diganta B. Das
This study elucidates the effects of the particle size, carbonation time, curing time and pressure on the efficiency of carbon storage in Portland cement mortar. Using pressure chamber experiments, our findings show how carbonation efficiency increases w...
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Renee Mors and Henk Jonkers
Water tightness of a concrete cover layer is important, as it is typically used as a protective coating of the steel reinforcement. Water tightness can be impaired by crack formation or by permeability. A bacteria-based lactate-derived healing agent (HA)...
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Kiran Kumar Poloju, Shalini Annadurai, Ram Kishore Manchiryal, Mallikarjuna Rao Goriparthi, Prabu Baskar, Mayakrishnan Prabakaran and Jongpil Kim
Concrete is a versatile construction material used along with a reinforcement. Concrete is made up of binder materials and aggregates. Cement is a primary binder material used to produce conventional concrete. Carbon dioxide emissions in the atmosphere a...
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