Journals / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2026 / Volume: 9 Issue: 1

New Experimental Approaches to Sand Hardening by Microbial Biocalcification

İrem Deniz(MANİSA CELÂL BAYAR ÜNİVERSİTESİ)0000-0002-1171-8259
Pages
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Publication Date
2020-03-13
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

This study shows the effects of sand hardness on innovative, environmentally friendly and biotechnological approach optimization.

📌 3 Key Takeaways

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Objective & Hypothesis:In recent years there has been a rapid growth in the construction sector in order to meet the need for housing with the increase in population.
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Key Findings & Data:The effect of different CaCl 2 concentrations (25 mM, 50 mM and 100 mM) and sand thickness (1mm, 5mm and 10 mm) was also tested.
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Conclusion & Impact:This study shows the effects of sand hardness on innovative, environmentally friendly and biotechnological approach optimization.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Bio-calcification · Bio-cement · Agar

Abstract

In recent years there has been a rapid growth in the construction sector in order to meet the need for housing with the increase in population. This growth led to the rapid development of the cement industry. In the process of increasing industrialization, biotechnological processes are becoming more important. The most important alternative of the cement industry is the microbial bio-calcification processes. In this process, cement-like structures are produced by bacteria at room temperature conditions. Microbial bio-calcification processes have attracted the interest of researchers especially in the process of self-healing in recent years as an alternative and nature-friendly solution to the cement processes that are being produced at high temperatures. This study presents a comparative study for sand hardening by microbial bio-calcification process. Different production surfaces was used for sand hardening with Sporosarcina pasteurii such as agar plates, filter paper and polyurethane support materials. The effect of different CaCl 2 concentrations (25 mM, 50 mM and 100 mM) and sand thickness (1mm, 5mm and 10 mm) was also tested. CaCO 3 was determined by FTIR and measured by chemical analysis. In addition, the hardness and integrity of the samples were observed. Agar and polyurethane support materials were found to be more effective in terms of support material for sand hardening. Increased thickness reduced the hardness and 50 mM CaCl 2 concentration was found to be optimum for these types of processes. This study shows the effects of sand hardness on innovative, environmentally friendly and biotechnological approach optimization.

Özet

Son yıllarda nüfustaki artışla birlikte barınma ihtiyacının giderilmesi için inşaat sektöründe hızlı bir büyüme olmuştur. Bu büyüme beraberinde çimento endüstrisinde hızlı gelişimi getirmiştir. Artan endüstrileşme sürecinde biyoteknolojik süreçler her geçen gün daha fazla önem kazanmaktadır. Çimento endüstrisinin en önemli alternatifi mikrobiyal biyokalsifikasyon prosesleridir. Bu proseste çimento benzeri yapılar oda sıcaklığı koşullarında bakteriler tarafından üretilmektedirler. Mikrobiyal biyo-kalsifikasyon prosesleri yüksek sıcaklıklarda üretimi gerçekleşen çimento proseslerine alternatif ve doğa dostu bir çözüm olarak son yıllarda araştırmacıların ilgisini özellikle kendi kendine iyileşme sürecinde çekmiştir. Bu çalışma kapsamında mikrobiyal biyo-kalsifikasyon işlemiyle kum sertleşmesinde farklı üretim yüzeyleri karşılaştırılmıştır. Agar, filtre kağıdı ve poliüretan destek malzemeleri kullanılarak Sporosarcina pasteurii ile kum sertleştirmesi proses verimleri incelenmiştir. Farklı CaCl 2 konsantrasyonlarının (25 mM, 50 mM ve 100 mM) ve kum kalınlığının (1 mm, 5 mm ve 10 mm) etkisi de test edilmiştir. CaCO 3 varlığı FTIR testleri ile belirlenmiş ve konsantrasyon karşılaştırmaları kimyasal yöntemlerle yapılmıştır. Ek olarak, numunelerin sertliği ve bütünlüğü de gözlenerek en uygun üretim yüzeyi karşılaştırmalı olarak incelenmiştir. Sonuç olarak agar ve poliüretan destek malzemelerinin, kum sertleşmesinde destek malzemesi açısından daha etkili olduğu bulunmuştur. Artan kum kalınlığının sertliği azalttığı ve 50 mM CaCl 2 konsantrasyonunun optimum miktar olduğu belirlenmiştir. Bu çalışma yapı sektörü ve çimento sektörü açısından yenilikçi, çevre dostu ve biyoteknolojik bir yöntemin optimizasyonu niteliğindedir.

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Cite This Article

Arıç, A., Deniz, İ., Gündoğdu, T. K. (2020). New Experimental Approaches to Sand Hardening by Microbial Biocalcification. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Volume: 9 Issue: 1. https://doi.org/10.17798/bitlisfen.570061

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