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Experimental Study on the Compressive Strength of Concrete with Different Wheat Straw Treatment Techniques

Liang Wen1,2,*, Changhong Yan3, Yehui Shi4, Zhenxiang Wang4, Gang Liu4, Wei Shi4

1 Tunnel and Underground Engineering Research Center of Jiangsu Province (TERC), Nanjing, 210041, China
2 School of Civil Engineering and Architecture, Anhui University of Science & Technology, Huainan, 232001, China
3 School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China
4 The First Geological Brigade of Jiangsu Geology and Mineral Exploration Bureau, Nanjing, 210041, China

* Corresponding Author: Liang Wen. Email: email

Journal of Renewable Materials 2023, 11(10), 3681-3692. https://doi.org/10.32604/jrm.2023.027671

Abstract

The treatment of wheat straw is very difficult, and its utilization rate is very low; accumulation causes air pollution and even fire. To make full use of wheat straw resources, we examined how using different physical and chemical methods to treat the wheat straw which can improve its strength abilities, or enhance the activity of wheat straw ash. In terms of concrete additives, it can reduce the amount of cement used. In this paper, we found that alkali treatment can significantly improve the tensile strength of wheat straw fiber, but polyvinyl alcohol treatment has no obvious effect on the strength of wheat straw fiber after alkali treatment. At the same time, we analyzed the wheat straw fiber microstructure through scanning electron microscopy, and we also studied the wheat straw ash chemical composition after 600°C high-temperature treatment. Through the compressive strength test, we found that the strength of concrete decreases with increasing of wheat straw fiber and wheat straw powder content, and the compressive strength of concrete with wheat straw ash instead of 5% cement decreases little, and the strength of the concrete also decreases with the increasing of wheat straw ash. Through the macroscopic observation of the failure form of concrete, we found that the failure form of concrete with wheat straw ash is similar to that of common concrete, while the failure degree of concrete with wheat straw fiber and wheat straw powder is weakened. Through the scanning electron microscope test of the concrete, it was found that wheat straw fiber has an effect on the cracking of concrete and the inner compactness of concrete can also be affected by adding wheat straw ash and wheat straw powder.

Graphical Abstract

Experimental Study on the Compressive Strength of Concrete with Different Wheat Straw Treatment Techniques

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APA Style
Wen, L., Yan, C., Shi, Y., Wang, Z., Liu, G. et al. (2023). Experimental study on the compressive strength of concrete with different wheat straw treatment techniques. Journal of Renewable Materials, 11(10), 3681-3692. https://doi.org/10.32604/jrm.2023.027671
Vancouver Style
Wen L, Yan C, Shi Y, Wang Z, Liu G, Shi W. Experimental study on the compressive strength of concrete with different wheat straw treatment techniques. J Renew Mater. 2023;11(10):3681-3692 https://doi.org/10.32604/jrm.2023.027671
IEEE Style
L. Wen, C. Yan, Y. Shi, Z. Wang, G. Liu, and W. Shi "Experimental Study on the Compressive Strength of Concrete with Different Wheat Straw Treatment Techniques," J. Renew. Mater., vol. 11, no. 10, pp. 3681-3692. 2023. https://doi.org/10.32604/jrm.2023.027671



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