Innovative early age mechanical properties of 3D printable mortar enhanced with SBR latex and kaolin DOI
Mazhar Yasin,

Zahid Ahmad Siddiqi,

Atteq ur Rehman

et al.

European Journal of Environmental and Civil engineering, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 23

Published: Nov. 7, 2024

As the global population has continued to grow, costs and environmental issues associated with traditional construction materials like cement river sand have become increasingly problematic. This study explores innovative enhancement of early-age mechanical properties 3D-printable mortar through incorporation Styrene-Butadiene Rubber (SBR) latex kaolin. Various sands (Lawrencepur, Chenab, Ravi) were tested at 120 min for compressive stress, direct shear strength, Young's Modulus, Shear Modulus. Lawrencepur Sand exhibited highest stress (206.75 kPa) strength (74.60 kPa), followed by Chenab Ravi Sand. Modulus values in (7.93 MPa), indicating superior stiffness, while was (3.79 MPa). Sand, despite lower strengths, found optimal printable due its fine particle size desirable texture. The SBR kaolin resulted reduced maximum deflection enhanced load-bearing capacity over time, containing 99.64% particles minimal silt bearing ultimate load effectively. highlights potential improving suitability mortar, providing a balance between performance printability.

Language: Английский

Geopolymers and alkali-activated materials in pervious concrete DOI
Firas Barraj, Ali Jahami, Ali Hatoum

et al.

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 35 - 75

Published: Jan. 1, 2025

Language: Английский

Citations

0
Innovative Solutions for Concrete Applications DOI Creative Commons
Patricia Kara De Maeijer

Infrastructures, Journal Year: 2025, Volume and Issue: 10(3), P. 59 - 59

Published: March 10, 2025

Concrete, having evolved over the last 2000 years, is integral to modern infrastructure, with continuous innovations aiming address sustainability challenges. From Roman concrete mixes invention of Portland cement (PC), has meet growing infrastructure demands. As urbanization and energy consumption increase, construction industry focusing on high-performance materials, recycling, minimizing harmful substances. Research sustainable alternatives shows promising reductions in global warming potential other environmental impacts compared traditional PC. However, challenges such as higher material costs performance limitations remain. Alternatives alkali-activated (AAC), self-healing concrete, bacterial (BC) have emerged response concerns, along fiber-reinforced AAC, waste-based composites, reuse demolition waste (CDW), further enhancing sustainability. Foamed its lightweight insulating properties, offers additional for reducing impact due ability incorporate recycled materials reduce raw consumption. Technologies like three-dimensional printing (3DCP) are improving resource efficiency carbon footprints while also lowering labor waste. concerns regarding cost-effectiveness social persist. Overall, continued innovation key balancing performance, cost, development demands infrastructure.

Language: Английский

Citations

0
Effects of steel dust waste incorporation on the mechanical properties of concrete DOI
Najmadeen Saeed,

Barham Haidar Ali,

Sarchil Faisal Khidir

et al.

Architecture Structures and Construction, Journal Year: 2025, Volume and Issue: 5(1)

Published: March 12, 2025

Language: Английский

Citations

0
Optimizing compressive capacity: A comprehensive study on cast-in-situ phosphogypsum walls with varied high-thickness ratios and eccentricity distances DOI Creative Commons
Qin Wu,

Huagang Zhang,

Xiaofei Jia

et al.

Case Studies in Construction Materials, Journal Year: 2024, Volume and Issue: 20, P. e03025 - e03025

Published: March 2, 2024

The problem of pollution caused by the massive accumulation phosphogypsum has become a worldwide problem. In order to realize application cast-in-place walls (CPGW) as vertically stressed members in low-rise buildings with small openings, this paper investigates compressive bearing capacity CPGW and its calculation method. A total 62, 5 sets specimens were fabricated for compression testing. By analyzing effects different high-thickness ratios eccentricity distances on failure characteristics CPGW, mechanism is revealed, method calculating established. results showed that three types brittle occurred CPGW: top splitting failure, conical root fracture failure. ratio distance had significant effect CPGW. addition, was Comparison formulae calculated values test verified feasibility accuracy proposed This study can provide theoretical reference engineering

Language: Английский

Citations

3
Effect of steam curing on strength, durability and microstructure of concretes with and without mineral admixtures DOI
Beixing Li, Yucheng Yang, An Huang

et al.

Advances in Cement Research, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: Aug. 13, 2024

This research explores the effect of steam curing on strength, durability and microstructure concretes with without mineral admixtures fly ash (FA) ground granulated blast-furnace slag powder (SL). Two types C55 strength grade (one was pure cement concrete, other a concrete made by replacing part 12% FA 18% SL) were prepared their compressive chloride diffusion coefficient carbonation depth under standard steam-curing conditions measured compared. The phase composition two tested X-ray diffraction, scanning electron microscopy mercury intrusion porosimetry. results showed that, one hand, compared curing, is beneficial to early but not conducive later development permeability resistance both concretes. Furthermore, for steam-cured 28 days forming surface higher than that bottom surface. In addition, can reduce carbonisation improve mixed SL. On composite SL cured curing. are thermally activated react calcium hydroxide formed hydration in stage, which produces larger amount secondary products pore structure interfacial this way, adverse effects significantly restrained

Language: Английский

Citations

2
Performance evaluation of controlled low-strength blended cement concrete modified with recycled waste materials DOI
M. Karthik, Solomon Oyebisi, Pshtiwan Shakor

et al.

World Journal of Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Purpose This work aims to investigate the feasibility of recycling waste plastic (polyethylene terephthalate) as a coarse aggregate for producing blended cement concrete modified with fly ash and pond ash. Design/methodology/approach The low, medium high controlled strength varied proportions ashes were produced. Manufactured sand recycled (RPCA) replaced normal fine aggregates. Concrete samples tested workability, mechanical durability characteristics. Microstructural analysis was performed on compared conventional samples. Findings All mixes showed better flowability values greater than 200 mm. Besides, maximum flow time approximately 8 s. wet density concrete-RPCA-based concretes 30% lower that concrete. compressive strengths mix at 7 28 days within specified ranges. While had slightly higher permeability, thermal resistivity conductivity. scanning electron microscopy revealed densification microstructure due filler effects ashes. Originality/value study establishes prospects substituting RPCA in production low-strength concrete, offering benefits structural fill permeability conductivity, reduced shrinkage.

Language: Английский

Citations

2
Aging behavior and long-term performance: a comparative study of hot mix versus chemical warm mix asphalt DOI
Firas Barraj,

Mohamed Bilani,

Ali Hatoum

et al.

Innovative Infrastructure Solutions, Journal Year: 2024, Volume and Issue: 9(2)

Published: Feb. 1, 2024

Language: Английский

Citations

0
Ternary blended concrete strength evaluation: experimental and artificial intelligence techniques DOI
Solomon Oyebisi, Mahaad Issa Shammas, H. I. Owamah

et al.

World Journal of Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Purpose The purpose of this study is to forecast the mechanical properties ternary blended concrete (TBC) modified with oyster shell powder (OSP) and shea nutshell ash (SNA) using deep neural network (DNN) models. Design/methodology/approach DNN models three hidden layers, each layer containing 5–30 nodes, were used predict target variables (compressive strength [CS], flexural [FS] split tensile [STS]) for eight input classes 25 30 MPa. samples cured 3–120 days. Levenberg−Marquardt's backpropagation learning technique trained networks, model's precision was confirmed experimental data set. Findings model a 25-node structure yielded strong relation training, validating testing output lowest mean squared error (MSE) highest correlation coefficient ( R ) values 0.0099 99.91% CS 0.010 98.42% FS compared other architectures. However, 20-node architecture STS, MSE 0.013 97.26%. Strong relationships found between developed raw sets, 2 99.58%, 97.85% 97.58% CS, respectively. Originality/value To best authors’ knowledge, novel research establishes prospects replacing SNA OSP Portland limestone cement (PLC) produce TBC. In addition, predicting STS TBC original, optimizing time, cost quality concrete.

Language: Английский

Citations

0
Seismic response of bridge pier-pile cap joints using Eco-SCC and Eco-BFRSCC: an experimental study DOI
Nilanjan Tarafder, Lakshmi Vara Prasad Meesaraganda

Journal of Building Pathology and Rehabilitation, Journal Year: 2024, Volume and Issue: 10(1)

Published: Sept. 30, 2024

Language: Английский

Citations

0
Innovative early age mechanical properties of 3D printable mortar enhanced with SBR latex and kaolin DOI
Mazhar Yasin,

Zahid Ahmad Siddiqi,

Atteq ur Rehman

et al.

European Journal of Environmental and Civil engineering, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 23

Published: Nov. 7, 2024

As the global population has continued to grow, costs and environmental issues associated with traditional construction materials like cement river sand have become increasingly problematic. This study explores innovative enhancement of early-age mechanical properties 3D-printable mortar through incorporation Styrene-Butadiene Rubber (SBR) latex kaolin. Various sands (Lawrencepur, Chenab, Ravi) were tested at 120 min for compressive stress, direct shear strength, Young's Modulus, Shear Modulus. Lawrencepur Sand exhibited highest stress (206.75 kPa) strength (74.60 kPa), followed by Chenab Ravi Sand. Modulus values in (7.93 MPa), indicating superior stiffness, while was (3.79 MPa). Sand, despite lower strengths, found optimal printable due its fine particle size desirable texture. The SBR kaolin resulted reduced maximum deflection enhanced load-bearing capacity over time, containing 99.64% particles minimal silt bearing ultimate load effectively. highlights potential improving suitability mortar, providing a balance between performance printability.

Language: Английский

Citations

0