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A platform for research: civil engineering, architecture and urbanism
PE fiber for airtight concrete, surface treatment method of PE fiber and airtight concrete
The invention discloses a surface treatment method of PE fibers for airtight concrete. The surface treatment method comprises the following steps: S1, adding the PE fibers, a bacterial culture and water into a container according to a certain proportion, and uniformly stirring; s2, transferring the container to a temperature of 35-38 DEG C, and carrying out constant-temperature aerobic culture; compared with the prior art, the method has the advantages that point-shaped bulges are generated on the treated PE fibers, the surface roughness is increased, the chemical bonding energy of a fiber interface is obviously reduced, and the strain-hardening coefficient of the PE fibers is obviously increased; in addition, due to existence of the bacterial culture, after the treated PE fiber is applied to the airtight concrete, the activity of bacteria at microcracks is higher, the capability of generating hydration products by utilizing air, water, carbon dioxide and the like is higher, and the capability of generating self-healing behaviors at the microcracks of the airtight concrete is remarkably improved.
本发明公开了一种气密混凝土用PE纤维的表面处理方法，包括以下步骤：步骤S1，将PE纤维、细菌培养物以及水按照一定比例加入容器中搅拌均匀；步骤S2，后将容器转入35‑38℃温度下进行恒温有氧培养；本发明与现有技术相比，使处理后的PE纤维不仅产生了点状凸起，增加了表面粗糙度，同时还使纤维界面的化学结合能明显降低，同时其应变‑硬化系数显著增大；且由于细菌培养物的存在，能够使处理后的PE纤维应用在气密混凝土中后，微裂缝处细菌活性更强，利用空气、水、二氧化碳等产生水化产物的能力越强，则气密混凝土的微裂缝处发生自愈合行为的能力得到显著提高。
PE fiber for airtight concrete, surface treatment method of PE fiber and airtight concrete
The invention discloses a surface treatment method of PE fibers for airtight concrete. The surface treatment method comprises the following steps: S1, adding the PE fibers, a bacterial culture and water into a container according to a certain proportion, and uniformly stirring; s2, transferring the container to a temperature of 35-38 DEG C, and carrying out constant-temperature aerobic culture; compared with the prior art, the method has the advantages that point-shaped bulges are generated on the treated PE fibers, the surface roughness is increased, the chemical bonding energy of a fiber interface is obviously reduced, and the strain-hardening coefficient of the PE fibers is obviously increased; in addition, due to existence of the bacterial culture, after the treated PE fiber is applied to the airtight concrete, the activity of bacteria at microcracks is higher, the capability of generating hydration products by utilizing air, water, carbon dioxide and the like is higher, and the capability of generating self-healing behaviors at the microcracks of the airtight concrete is remarkably improved.
本发明公开了一种气密混凝土用PE纤维的表面处理方法，包括以下步骤：步骤S1，将PE纤维、细菌培养物以及水按照一定比例加入容器中搅拌均匀；步骤S2，后将容器转入35‑38℃温度下进行恒温有氧培养；本发明与现有技术相比，使处理后的PE纤维不仅产生了点状凸起，增加了表面粗糙度，同时还使纤维界面的化学结合能明显降低，同时其应变‑硬化系数显著增大；且由于细菌培养物的存在，能够使处理后的PE纤维应用在气密混凝土中后，微裂缝处细菌活性更强，利用空气、水、二氧化碳等产生水化产物的能力越强，则气密混凝土的微裂缝处发生自愈合行为的能力得到显著提高。
PE fiber for airtight concrete, surface treatment method of PE fiber and airtight concrete
一种气密混凝土用PE纤维、其表面处理方法以及气密混凝土
ZHAO LIN (author) / TIAN KUN (author) / XIA TAO (author) / ZHAN JINSHENG (author) / SHI PENG (author) / HE WEN (author) / CHENG YINHANG (author) / JI QIANG (author) / JIANG YONGGANG (author) / XIANG HAI (author)
2024-04-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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