Evidence map›Paper›PMID 35683300›Full record

ArticleMaterials (Basel, Switzerland)2022

Manufacturing of Sustainable Untreated Coal Ash Masonry Units for Structural Applications.

Wasim Abbass, Safeer Abbas, Fahid Aslam, Ali Ahmed, Tauqir Ahmed, Agha Hashir, Amr Mamdouh

Abstract read
In one paragraph

Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Wasim AbbassDepartment of Civil Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.
Safeer AbbasDepartment of Civil Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.ORCID 0000-0002-5989-3793
Fahid AslamDepartment of Civil Engineering, College of Engineering in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 16273, Saudi Arabia.ORCID 0000-0003-2863-3283
Ali AhmedDepartment of Civil Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.ORCID 0000-0003-4476-2384
Tauqir AhmedDepartment of Civil Engineering, National University of Computer and Emerging Sciences, Lahore 54000, Pakistan.ORCID 0000-0002-4261-193X
Agha HashirDepartment of Civil Engineering, University of Engineering and Technology, Lahore 54890, Pakistan.
Amr MamdouhArchitectural Engineering Department, Faculty of Engineering and Technology, Future University in Egypt, New Cairo 11835, Egypt.ORCID 0000-0003-3795-322X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Burnt clay bricks are one of the most important building units worldwide, are easy and cheap to make, and are readily available. However, the utilization of fertile clay in the production of burnt clay bricks is also one of the causes of environmental pollution because of the emission of greenhouse gases from industrial kilns during the large-scale burning process. Therefore, there is a need to develop a new class of building units (bricks) incorporating recycled industrial waste, leading toward sustainable construction by a reduction in the environmental overburden. This research aimed to explore the potential of untreated coal ash for the manufacturing of building units (coal ash unburnt bricks). Coal ash unburnt bricks were manufactured at an industrial brick plant by applying a pre-form pressure of 3 MPa and later curing them via water sprinkling in a control shed. Various proportions of coal ash (i.e., 30, 35, 40, 45, 50, and 55%) were employed to investigate the mechanical and durability-related properties of the resulting bricks, then they were compared with conventional burnt clay bricks. Compressive strength, flexural strength, an initial rate of water absorption, efflorescence, microstructural analysis via scanning electron microscopy, and cost analysis were conducted. The results of the compressive strength tests revealed that the compressive strength of coal ash unburnt brick decreased with an increase in the content of coal ash; however, up to a 45% proportion of coal ash, the minimum required compressive strength specified by ASTM C62 and local building codes was satisfied. Furthermore, bricks incorporating up to 45% of coal ash also satisfied the ASTM C62 requirements for water absorption. Coal ash unburnt bricks are lighter in weight owing to their porous developed microstructure. The cost analysis showed that the utilization of untreated, locally available coal ash in brick production leads us on the path toward more economical and sustainable building units.

Indexed as

efficient waste disposalrecycling of coal ashsustainable construction materials

Identifiers

PMID35683300
PMCPMC9182409

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.