DOI: 10.1016/j.conbuildmat.2022.128932 Corpus ID: 251941896; Sustainability enhancement of calcined clay and limestone powder hybrid ultra-high-performance concrete using belite-rich Portland cement
Soil contaminated with heavy metals is a serious threat to the sustainable development and global food security [1,2,3,4].In contrast to water and air pollution, heavy metal pollution in soils is an invisible and unseen problem [1,5,6,7,8,9].Many of the world's contaminated sites have become the dump sites of various industrial by-products that …
The use of calcined clays as supplementary cementitious materials provides the opportunity to significantly reduce the cement industry's carbon burden; however, use at a global scale requires a deep understanding of the extraction and processing of the clays to be used, which will uncover routes to optimise their reactivity.
The second major use of limestone is in steelmaking. It is being used for maintaining slag basicity (CaO/SiO2) of around 3. In steelmaking, limestone is used in calcined form. For use in steelmaking, the SiO2 (because of its acidic nature) content in the limestone is to be very low preferably less than 1 %. Also, the reactivity of the lime is ...
One of the most notable developments in recent years is the use of calcined clays in a cement system combined with limestone [17, 18, 19, 20], referred to as limestone …
Limestone calcined clay cement (LC 3) is being developed as a low-carbon alternative to conventional cements. The cement has the potential to reduce CO 2 …
This paper details the main factors influencing the performance of limestone calcined clay cements (LC3). The kaolinite content plays a major role in the rheological properties as well as strength development. Even in the presence of secondary phases, kaolinite can be accurately quantified by thermogravimetric analysis. The …
1. Introduction. To reduce CO 2 emissions and the consumption of natural raw materials in cement production, supplementary cementitious materials (SCMs) have been developed over the past decade [[1], [2], [3], [4]].Limestone calcined clay cement (LC 3) is a promising low-carbon alternative for Ordinary Portland cement (OPC), which can replace …
DOI: 10.1016/j.conbuildmat.2023.132026 Corpus ID: 259495078; Using limestone calcined clay cement and recycled fine aggregate to make ultra-high-performance concrete: Properties and environmental impact
Semantic Scholar extracted view of "High-efficiency utilization of limestone tailings: Used as cementitious materials and fine aggregate to prepare karst structure filling material" by Yansheng Wang et al.
The major drawbacks of UHPC limiting its application in engineering construction include the high production cost and the high carbon dioxide emission. ... [32] designed UHPC with calcined clay tailings and limestone powder and found that calcined clay tailings optimized the pore structure of UHPC and improved its impermeability. …
Limestone calcined clay cement (LC 3 ) comes from a new line of binder/SCMs that use calcined clay and limestone to replace the clinker content in conventional types of cement available in the ...
1. Introduction. As the world's most used construction material, Portland cement (PC) has been widely recognized as an energy and carbon intensive material, contributing more than 5% of global anthropogenic CO 2 emissions [1].About 0.9 tonne of CO 2 is emitted for producing 1 tonne PC, mainly due to the high clinkering temperature …
This study presents an eco-efficient cement-limestone- calcined clay tailings ultra-high performance concrete (LC 2 UHPC). On the basis of the D-optimal mixture design method, the LC 2 UHPC recipes and fresh behaviors are firstly proposed and optimized. Then, the macro and micro characteristics of produced LC 2 UHPC are …
The concept of combining calcined clays and limestone to replace more clinker was first proposed by Antoni et al. [14], although calcined clays and limestone have long been used as pozzolanic materials and cement fillers [31, 32]. The key innovation of LC3 is the use of commonly available kaolinite clay, particularly the low-grade ones …
The use of finely ground limestone and calcined clay in combination as replacement for Portland cement clinker leads to the densification of microstructure resulting from the physical packing as ...
Semantic Scholar extracted view of "Development of a novel eco-efficient LC2 conceptual cement based ultra-high performance concrete (UHPC) incorporating limestone powder and calcined clay tailings: Design and performances" by Yu Sun et al.
The utilization of calcined coal gangue (CCG) and limestone for the preparation of blended cement is an efficient approach to address the issue of coal gangue disposal. However, the compressive strength development of blended cement is slow, particularly at high substitution levels of CCG. Therefore, this study aimed to promote …
Oman: Middle East Calcined Clay and Netherlands-based Kaolin Group International plan to build a limestone calcined clay cement plant in Oman. The …
"IPIAC is now introducing this disruptive technology in Oman, which will be the first country in the Middle East region to use calcined clays to reduce its clinker …
Recycling of phosphate tailings (PT) in cement production can reduce the amount of this solid waste and its consequent pollution. This paper used high content of calcined PT as an alternative to light-burned magnesia to …
Thermochemical energy storage based on CaO/CaCO3 cycles has obtained significant attention as an alternative energy storage solution for concentrated solar power plants. In view of the applicability of fluidized bed reactors for CaO/CaCO3 heat storage, it is imperative to study the factors related to the heat release performance of CaO. This …
This study presents an eco-efficient cement-limestone- calcined clay tailings ultra-high performance concrete (LC² UHPC). On the basis of the D-optimal mixture design method, the LC² UHPC ...
It intends to use agricultural by-products such as pistachio shells, as alternatives fuels to lower the fuel-based emissions, calcined clay to lower the clinker factor and CCS to capture the remaining 950,000t/yr of CO 2 emissions. The other projects either involve using calcined clay or substituting limestone with calcium silicate.
This mineral has enormous diversity of industrial applications and what follows are some key uses of Limestone: Steel industry. Construction Materials. Refractory. Sugar Refining. Agriculture. Paper manufacturing. …
DOI: 10.1016/j.conbuildmat.2021.125416 Corpus ID: 245751936; Microstructure and mechanical properties of sustainable cementitious materials with ultra-high substitution level of calcined clay and limestone powder
Limestone Calcined Clay Cement (LC3) is one of the ecological binders used in mortars due to its low percentage of clinker in its content and carbon mitigation potentials.
Semantic Scholar extracted view of "Investigation of the use of Limestone Calcined Clay Cement (LC3) applied to Thailand" by W. Hanpongpun ... Skip to search form Skip to main content Skip to account menu. Semantic Scholar's Logo. Search 220,767,108 papers from all fields of science. Search. Sign In Create Free Account. DOI: 10.5075/EPFL-THESIS ...
Summary of the key findings and implications for the use of LC3. Limestone calcined clay cement (LC3) is a promising alternative to traditional cement, offering significant environmental benefits, lower costs, and improved durability.
Limestone-calcined clay cement (LC3) is one of the green or low-carbon binder options for replacing Portland cement, leading to sustainable construction. ... marble [21], mine tailings [22], incinerated bottom ash [23], and construction demolition waste (CDW) ... In addition to the bulk density, thermal conductivity is the main themo-physical ...
Wide range of feed limestone sizes can be used. Very low residual CO2 is achievable. There is flexibility of reactivity from soft to hard-burned. There is possibility to produce dead burned dolomite. There exists flexibility with …
Semantic Scholar extracted view of "On the use of limestone calcined clay cement (LC3) in high-strength strain-hardening cement-based composites (HS-SHCC)" by Lei Wang et al. ... Vulnerability to atmospheric carbonation is one of the major durability concerns for limestone calcined clay cement (LC3) concrete due to its relatively low …
Limestone calcined clay cement (LC 3) is a novel kind of ternary blended cement, for which calcined clay and limestone (LS) are the main constituents replacing clinker ... In addition, producing 1 ton of rare earth is expected to produce 2000 tons of rare earth tailings (Wang et al., 2016). Its abundant supply and wide distribution means that ...