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1. Preparation of sustainable and green cement-based composite binders with high-volume steel slag powder and ultrafine blast furnace slag powder

Author:
Yu Liu; Zengqi Zhang; Guihua Hou; Peiyu Yan
Source:
Journal of cleaner production 2021 v.289 pp. 125133
ISSN:
0959-6526
Subject:
pastes,   etc   ; cement; concrete; furnaces; mechanical properties; particle size distribution; particles; porosity; slags; steel; wastes;     Show all 11 Subjects
Abstract:
... The mechanical properties and hydration mechanism of ultrafine ground granulated blast furnace slag powder (UFS)-cement-steel slag powder (SS) ternary cementitious material systems were studied. The chemical effects and contribution ratios of UFS and SS in ternary system at different hydration ages were also investigated. The results show that by adding UFS, the mechanical properties of concrete c ...
DOI:
10.1016/j.jclepro.2020.125133

2. Recycling use of sulfate-rich sewage sludge ash (SR-SSA) in cement-based materials: Assessment on the basic properties, volume deformation and microstructure of SR-SSA blended cement pastes

Author:
Chunping Gu; Yongjie Ji; Yurong Zhang; Yang Yang; Jintao Liu; Tongyuan Ni
Source:
Journal of cleaner production 2021 v.282 pp. 124511
ISSN:
0959-6526
Subject:
pastes,   etc   ; carbon dioxide; cement; compression strength; deformation; drying; microstructure; modulus of rupture; recycling; shrinkage; sludge; sludge ash; sulfates; volume; wastewater; China;     Show all 16 Subjects
Abstract:
... Sewage sludge ash (SSA) is the waste obtained from the incineration of wastewater sludge. SSA could be recycled in cement-based materials, but normally SSA in China is sulfate rich, and how the sulfate-rich sewage sludge ash (SR-SSA) influence the properties and microstructure of cement-based materials is still unknown. This study aimed to investigate the possibility of recycling use SR-SSA in cem ...
DOI:
10.1016/j.jclepro.2020.124511

3. Dependence of the geopolymerization process and end-products to the nature of solid precursors: Challenge of the sustainability

Author:
Elie Kamseu; Valeria Alzari; Daniele Nuvoli; Davide Sanna; Isabella Lancellotti; Alberto Mariani; Cristina Leonelli
Source:
Journal of cleaner production 2021 v.278 pp. 123587
ISSN:
0959-6526
Subject:
pastes,   etc   ; aluminum silicates; cations; cement; classification; design; feldspar; fly ash; gels; paper; particles; polymers; relative humidity; steam; technology; temperature; volcanic ash;     Show all 17 Subjects
Abstract:
... This review retrieves the determinant role of the solid precursor on the definition, chemistry, processing and applications of geopolymers. It is demonstrated that the process, the alkaline solution, the curing conditions as well as the orientation of the end-products in term of performance and potential application are governed by the intrinsic nature and characteristics of the aluminosilicate pr ...
DOI:
10.1016/j.jclepro.2020.123587

4. Kinetic study on elemental mercury release from fly ashes and hydrated fly ash cement pastes

Author:
Wen Du; Chao-yang Zhang; Xiang-ming Kong; Yu-qun Zhuo
Source:
Chemosphere 2020 v.241 pp. 125028
ISSN:
0045-6535
Subject:
pastes,   etc   ; cement; desorption; encapsulation; evaporation; fly ash; mercury; temperature;     Show all 8 Subjects
Abstract:
... The kinetics of elemental mercury (Hg⁰) release from fly ashes and hydrated fly ash cement pastes was investigated using a homemade Hg measurement system. Three types of fly ash (FA) and ordinary Portland cement (OPC) were used to prepare cement pastes. After standard curing for 28 days, the hydrated cement paste (HCP) was ground into a fine powder for Hg emission measurements. Detectable Hg⁰ was ...
DOI:
10.1016/j.chemosphere.2019.125028

5. Encapsulating Well-Dispersed Carbon Nanoparticles for Applications in the Autonomous Restoration of Electronic Circuits

Author:
Ta-Li Hsieh; Chia-Chen Li; Po-Ching Lin; Ya-Chu Hsu
Source:
ACS applied materials & interfaces 2020 v.12 no.34 pp. 38690-38699
ISSN:
1944-8252
Subject:
pastes,   etc   ; carbon nanoparticles; electrical conductivity; electronic circuits; encapsulation; toluene;     Show all 6 Subjects
Abstract:
... Two types of conductive microcapsules with a median size of less than 5 μm are proposed, and their high potential as a key functional material for self-restorable conductive pastes for applications in printed electronic circuits is verified. A well-dispersed suspension of carbon nanoparticles in toluene is prepared as the core material of the microcapsules. The restoration capabilities of the micr ...
DOI:
10.1021/acsami.0c11235

6. Screen-Printed Ferroelectric P(VDF-TrFE)-co-PbTiO₃ and P(VDF-TrFE)-co-NaBiTi₂O₆ Nanocomposites for Selective Temperature and Pressure Sensing

Author:
Taher Abu Ali; Jonas Groten; Jürgen Clade; Daniela Collin; Philipp Schäffner; Martin Zirkl; Anna-Maria Coclite; Gerhard Domann; Barbara Stadlober
Source:
ACS applied materials & interfaces 2020 v.12 no.34 pp. 38614-38625
ISSN:
1944-8252
Subject:
pastes,   etc   ; bismuth; ceramics; lead; nanocomposites; nanoparticles; pellets; polymers; sodium; temperature;     Show all 10 Subjects
Abstract:
... Piezo- and pyroelectricity is an intrinsically combined material property for all ferroelectric materials. While the pyroelectric coefficients of most ferroelectric ceramics and polymers have the same sign, their piezoelectric coefficients have opposite ones. On this basis, we can create a polymer–ceramic nanocomposite material where either the piezo- or the pyroelectric effect is suppressed by a ...
DOI:
10.1021/acsami.0c08469

7. Low-Temperature Graphene-Based Paste for Large-Area Carbon Perovskite Solar Cells

Author:
Paolo Mariani; Leyla Najafi; Gabriele Bianca; Marilena Isabella Zappia; Luca Gabatel; Antonio Agresti; Sara Pescetelli; Aldo Di Carlo; Sebastiano Bellani; Francesco Bonaccorso
Source:
ACS applied materials & interfaces 2021 v.13 no.19 pp. 22368-22380
ISSN:
1944-8252
Subject:
pastes,   etc   ; counters; electrodes; graphene; materials; pasting properties; solar cells; thermal stability;     Show all 8 Subjects
Abstract:
... Carbon perovskite solar cells (C-PSCs), using carbon-based counter electrodes (C-CEs), promise to mitigate instability issues while providing solution-processed and low-cost device configurations. In this work, we report the fabrication and characterization of efficient paintable C-PSCs obtained by depositing a low-temperature-processed graphene-based carbon paste atop prototypical mesoscopic and ...
DOI:
10.1021/acsami.1c02626

8. Study on the activation of ternesite in CaO·Al2O3 and 12CaO·7Al2O3 blends with gypsum for the development of low-CO2 binders

Author:
P.M. Carmona-Quiroga; M. Montes; E. Pato; A. Fernández-Jiménez; M.T. Blanco-Varela
Source:
Journal of cleaner production 2021 v.291 pp. 125726
ISSN:
0959-6526
Subject:
pastes,   etc   ; aluminum oxide; calcium; calcium sulfate; calorimetry; gypsum; knowledge; research; water;     Show all 9 Subjects
Abstract:
... This study aimed primarily to broaden the limited knowledge presently at hand about ternesite, 5CaO·2SiO₂·SO₃ (shorthand C₅S₂S¯,ter), reactivity in calcium sulfoaluminate-calcium aluminate (CSA-CAC) blended cements by exploring the hydration of the constituents of simplified CaO·Al₂O₃ (CA) + 5CaO·2SiO₂·SO₃ (ter) + CaSO₄·2H₂O (gypsum, gyp) or 12CaO·7Al₂O₃ (C₁₂A₇) + 5CaO·2SiO₂·SO₃ (ter) + CaSO₄·2H₂O ...
DOI:
10.1016/j.jclepro.2020.125726

9. Recycling hazardous water treatment sludge in cement-based construction materials: Mechanical properties, drying shrinkage, and nano-scale characteristics

Author:
Zhi-hai He; Ying Yang; Qiang Yuan; Jin-yan Shi; Bao-ju Liu; Chao-feng Liang; Shi-gui Du
Source:
Journal of cleaner production 2021 v.290 pp. 125832
ISSN:
0959-6526
Subject:
pastes,   etc   ; administrative management; cement; compression strength; construction materials; drying; landfills; mechanical properties; microstructure; paper; recycling; scanning electron microscopes; shrinkage; sludge; toxic substances; volume; water treatment; weight; width;     Show all 19 Subjects
Abstract:
... Water treatment sludge (WTS) management is a growing global problem, which is often disposed as a hazardous material in landfill space. This paper aims to use modified WTS as a novel supplementary cementitious material, by determining the effects of calcined WTS addition on the composition and performance of Portland cement composites. The effect of WTS to replace cement partially by weight on the ...
DOI:
10.1016/j.jclepro.2021.125832

10. Synthesis and characterization of cement clinker using recycled pulverized oyster and scallop shell as limestone substitutes

Author:
Sungwun Her; Taehoon Park; Erfan Zalnezhad; Sungchul Bae
Source:
Journal of cleaner production 2021 v.278 pp. 123987
ISSN:
0959-6526
Subject:
pastes,   etc   ; X-ray diffraction; aquaculture industry; byproducts; calorimetry; cement; energy-dispersive X-ray analysis; limestone; oyster shells; oysters; pollution; raw materials; recycling; scallops; scanning electron microscopy; shellfish; thermogravimetry;     Show all 17 Subjects
Abstract:
... Developments in the aquaculture industry have increased the production of shellfish. However, the lack of a proper recycling method for discarded shells is resulting in marine environmental pollution. For the sustainable management of shellfish byproducts, pulverized oyster and scallop shell powder were used as major raw materials in cement-clinker production, replacing 100 wt% of limestone. The c ...
DOI:
10.1016/j.jclepro.2020.123987

11. Poly(lactic acid)-Based Ink for Biodegradable Printed Electronics With Conductivity Enhanced through Solvent Aging

Author:
Madhur Atreya; Karan Dikshit; Gabrielle Marinick; Jenna Nielson; Carson Bruns; Gregory L. Whiting
Source:
ACS applied materials & interfaces 2020 v.12 no.20 pp. 23494-23501
ISSN:
1944-8252
Subject:
pastes,   etc   ; biodegradability; electronics; environmental monitoring; heat; polylactic acid; soil water; solvents; temperature; tungsten;     Show all 10 Subjects
Abstract:
... Biodegradable electronics is a rapidly growing field, and the development of controllably biodegradable, high-conductivity materials suitable for additive manufacturing under ambient conditions remains a challenge. In this report, printable conductive pastes that employ poly(lactic acid) (PLA) as a binder and tungsten as a conductor are demonstrated. These composite conductors can provide enhanced ...
DOI:
10.1021/acsami.0c05196

12. Physicochemical, pasting, and rheological properties of pearl millet starches from different cultivars and their relations

Author:
A.K. Siroha; S. Punía; K.S. Sandhu; B.L. Karwasra
Source:
Acta alimentaria 2020 v.49 no.1 pp. 49-59
ISSN:
1588-2535
Subject:
pastes,   etc   ; Pennisetum glaucum; amylose; cultivars; pasting properties; solubility; starch granules; swelling (materials); viscoelasticity; viscosity;     Show all 10 Subjects
Abstract:
... Physicochemical, pasting, and rheological properties of pearl millet starches were studied and correlations among these properties were calculated. Amylose content, swelling power, and solubility of starches varied from 11.57 to 21.93%, 11.11 to 17.91 g g⁻¹ and 12.20 to 15.20%, respectively. Volume% of starch granule size less than 10 µm varied from 36.23 to 48.34%, and 12.16 to 18.75% for above 2 ...
DOI:
10.1556/066.2020.49.1.7

13. Effect of carbonation curing on sulfate resistance of cement-coal gangue paste

Author:
Ling Qin; Xiaojian Gao; Anshuang Su; Qiyan Li
Source:
Journal of cleaner production 2021 v.278 pp. 123897
ISSN:
0959-6526
Subject:
pastes,   etc   ; X-ray diffraction; carbonation; coal; compression strength; deformation; differential thermal analysis; durability; environmental sustainability; manufacturing; mercury; microstructure; porosity; scanning electron microscopes; scanning electron microscopy; strength (mechanics); sulfates; thermogravimetry;     Show all 18 Subjects
Abstract:
... This paper investigated the effect of carbonation curing on sulfate attack resistance of cement-coal gangue (PC-CG) pastes. Mechanical strength, volume deformation, and mass change of PC-CG blends were examined after different durations of sulfate solution immersion. On the other hand, the microstructure deterioration mechanism was determined using X-ray diffraction (QXRD/Rietveld), thermogravimet ...
DOI:
10.1016/j.jclepro.2020.123897

14. Recoverable Liquid Metal Paste with Reversible Rheological Characteristic for Electronics Printing

Author:
Hao Chang; Pan Zhang; Rui Guo; Yuntao Cui; Yi Hou; Ziqiao Sun; Wei Rao
Source:
ACS applied materials & interfaces 2020 v.12 no.12 pp. 14125-14135
ISSN:
1944-8252
Subject:
pastes,   etc   ; adhesion; alloys; droplets; electrical conductivity; electronics; friction; geographic information systems; plasticity; quartz; surface tension;     Show all 11 Subjects
Abstract:
... Gallium-based liquid metals are applied in the fabrication of soft electronics because of their conductivity and flexibility. However, the large surface tension and weak adhesion of liquid metals limit the available printing substrates. Recent researches indicate that amalgamating metal particles can turn liquid metal from fluid into a paste which has superb electrical conductivity, plasticity, an ...
DOI:
10.1021/acsami.9b20430

15. Barley starch modifications: Physical, chemical and enzymatic - A review

Author:
Sneh Punia
Source:
International journal of biological macromolecules 2020 v.144 pp. 578-585
ISSN:
0141-8130
Subject:
pastes,   etc   ; adhesion; barley starch; biodegradability; enzymatic treatment; gelation; gels; modified starch; nonfood industry; retrogradation; texture;     Show all 11 Subjects
Abstract:
... Starch is well known for its low cost, biodegradability, renewability and easy availability. Starches in their natural form have some undesirable characteristics that make them unsuitable for most applications and, therefore, they are subjected to various modifications to increase their positive characteristics and/or to decrease their defects. Modification is the process of changing the propertie ...
DOI:
10.1016/j.ijbiomac.2019.12.088

16. The assisting effects of ultrasound on the multiscale characteristics of heat-moisture treated starch from Agriophyllum squarrosum seeds

Author:
Lihong Han; Qiang Wei; Shaopan Cao; Yingtao Yu; Xiaohong Cao; Wenjuan Chen
Source:
International journal of biological macromolecules 2021 v.187 pp. 471-480
ISSN:
0141-8130
Subject:
pastes,   etc   ; Amaranthaceae; amylopectin; amylose; carbohydrate structure; crystal structure; digestibility; gelatinization temperature; hot water treatment; modified starch; molecular weight; resistant starch; seeds; starch granules; swelling (materials); ultrasonic treatment; ultrasonics; viscosity; water solubility;     Show all 19 Subjects
Abstract:
... Present study was aimed to characterize the effects of heat-moisture treatments supported by ultrasound on structural, physicochemical and digestive properties of the starch from Agriophyllum squarrosum seeds. The starch sample was subjected to heat-moisture (120°C, 25% moisture) for different durations with assisting by pre- or post-treatment of ultrasound (20 Hz, 300 W, 20 min). A. squarrosum st ...
DOI:
10.1016/j.ijbiomac.2021.07.123

17. Comparative study of radium and strontium behaviour in contact with cementitious materials

Author:
Jana Kittnerová; Barbora Drtinová; Karel Štamberg; Dušan Vopálka; Nicholas Evans; Guido Deissmann; Steve Lange
Source:
Applied geochemistry 2020 v.122 pp. 104713
ISSN:
0883-2927
Subject:
pastes,   etc   ; calcium silicate; cement; comparative study; geochemistry; isotopes; models; radionuclides; radium; sorption; sorption isotherms; strontium; temperature;     Show all 13 Subjects
Abstract:
... A comparative study of the sorption behaviour of radium and strontium was performed on various cementitious materials including crushed hardened cement pastes (HCP) and concretes as well as a synthesised calcium silicate hydrate (CSH) phase.Rd values obtained for the Ra and Sr uptake on commercial cement materials were in the range of 50–380 L kg⁻¹ and 10–30 L kg⁻¹, respectively. No significant di ...
DOI:
10.1016/j.apgeochem.2020.104713

18. New insights into water dynamics of Portland cement paste with nano-additives using quasielastic neutron scattering

Author:
Kunal Kupwade-Patil; Ali Bumajdad; Craig M. Brown; Madhusudan Tyagi; Nicholas P. Butch; Abdullah F. Jamsheer; Oral Büyüköztürk
Source:
Journal of materials science 2019 v.54 no.6 pp. 4710-4718
ISSN:
0022-2461
Subject:
pastes,   etc   ; cement; gels; nanomaterials; neutron diffraction; silica;     Show all 6 Subjects
Abstract:
... Early-age hydration kinetics of Portland cement with nano-additives such as nano-silica (NS) was examined using quasielastic neutron scattering (QENS). Cement pastes with different ratios of Portland cement to NS were prepared. The concentration of the NS played a major role in controlling the free and bound water during the hydration of the cement paste. Additionally, the effects of metakaolin (M ...
DOI:
10.1007/s10853-018-03212-x

19. Ecofriendly Catechol Lipid Bioresin for Low-Temperature Processed Electrode Patterns with Strong Durability

Author:
Bora Lee; Hyemi Han; Hoh-Gyu Hahn; Jeong Mann Doh; Se-Hoon Park; Eunji Lee; Sang-Soo Lee; Cheolmin Park; Ho Sun Lim; Jung Ah Lim
Source:
ACS applied materials & interfaces 2020 v.12 no.14 pp. 16864-16876
ISSN:
1944-8252
Subject:
pastes,   etc   ; adhesion; ambient temperature; catechol; crosslinking; durability; electrical conductivity; electrical resistance; electrodes; hardness; lipids; microstructure; shrinkage; silver;     Show all 14 Subjects
Abstract:
... We demonstrated catechol lipid-based bioresin, which is collected from lacquer trees, to produce conductive pastes that can be processed at low temperatures, which are highly adhesive and multidurable. Our conductive paste, which consists of catechol lipid-based urushiol resin and a multimodal mixture of silver fillers, exhibited stable dispersion with shear thinning properties. The urushiol lacqu ...
DOI:
10.1021/acsami.0c00199

20. Mechanical and microstructure characteristics development of hardened oil well cement pastes incorporating fly ash and silica fume at elevated temperatures

Author:
M. M. Hazem; F. S. Hashem; S. M. A. El-Gamal; M. S. Amin
Source:
Journal of Taibah University for Science 2020 v.14 no.1 pp. 155-167
ISSN:
1658-3655
Subject:
pastes,   etc   ; cement; compression strength; decline; fly ash; metamorphosis; microstructure; oil fields; pressure; silica; silicates; temperature; volcanic ash;     Show all 13 Subjects
Abstract:
... The performance of oil well cement (OWC) incorporating pozzolana under diverse hydrothermal curing circumstances was inspected. OWC was partially replaced by 5 weight% of silica fume (SF) or fly ash (FA). The prepared composites were cured under different hydrothermal circumstances (60°C/0.02 MPa, 100°C/0.1 MPa and 150°C/0.48 MPa) for 7 days. The outcomes established that increasing curing tempera ...
DOI:
10.1080/16583655.2020.1711998