Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for testing recycled fiber reinforced pouring type gypsum wallboard of wind power blade
The embodiment of the invention discloses a testing method for a recycled fiber reinforced pouring type gypsum wallboard of a wind power blade. The wallboard comprises the following materials: gypsum, water, an additional material, an additive and a cementing material. According to the testing method for the recycled fiber reinforced pouring type gypsum wallboard of the wind power blade, after comparative research and analysis, it is found that citric acid has the best gypsum preparation effect when different retarders are mixed in different mixing amounts, and then the CBMA retarder and tartaric acid have no retarding effect; the optimum mixing amount of citric acid is 0.2 per mill, the optimum mixing amount of the CBMA retarder is 0.5%, the citric acid retarding effect is obvious, along with the increase of the water-gypsum ratio, the consistency is gradually increased, the coagulation time is gradually prolonged, the fracture resistance and the compressive strength are gradually reduced, the apparent density before damage is also gradually reduced, along with the increase of the mixing amount of recycled fibers, the absolute dry density of a gypsum test piece is not greatly changed, and the recovery rate is greatly increased. However, the flexural strength and compressive strength of the gypsum are gradually increased, and the mixing amount is obviously increased by 8% or above, which means that the more the recovered fibers in the gypsum are, the more the flexural strength of the gypsum test piece can be improved.
本发明实施例公开了一种风电叶片回用纤维加强浇筑式石膏墙板的测试方法，包括以下物料：石膏、水、外加材料、外加剂和胶凝材料。该风电叶片回用纤维加强浇筑式石膏墙板的测试方法，经过对比研究分析后，发现掺入不同的缓凝剂不同掺量对石膏制备效果最佳的是柠檬酸，其次是CBMA缓凝剂，酒石酸无缓凝效果；柠檬酸最佳掺量0.2‰，CBMA缓凝剂最佳掺量0.5％，柠檬酸缓凝效果明显，随着水膏比的增大，稠度逐渐增大，凝结时间逐渐延长，抗折、抗压强度均逐渐降低，破坏前的表观密度也逐渐减小，随着回收纤维掺量的增加，石膏试件的绝干密度变化不大，但其抗折抗压强度均逐渐增大，掺量8％及以上增幅明显，代表石膏内回收纤维越多越能提高石膏试件的抗折强度。
Method for testing recycled fiber reinforced pouring type gypsum wallboard of wind power blade
The embodiment of the invention discloses a testing method for a recycled fiber reinforced pouring type gypsum wallboard of a wind power blade. The wallboard comprises the following materials: gypsum, water, an additional material, an additive and a cementing material. According to the testing method for the recycled fiber reinforced pouring type gypsum wallboard of the wind power blade, after comparative research and analysis, it is found that citric acid has the best gypsum preparation effect when different retarders are mixed in different mixing amounts, and then the CBMA retarder and tartaric acid have no retarding effect; the optimum mixing amount of citric acid is 0.2 per mill, the optimum mixing amount of the CBMA retarder is 0.5%, the citric acid retarding effect is obvious, along with the increase of the water-gypsum ratio, the consistency is gradually increased, the coagulation time is gradually prolonged, the fracture resistance and the compressive strength are gradually reduced, the apparent density before damage is also gradually reduced, along with the increase of the mixing amount of recycled fibers, the absolute dry density of a gypsum test piece is not greatly changed, and the recovery rate is greatly increased. However, the flexural strength and compressive strength of the gypsum are gradually increased, and the mixing amount is obviously increased by 8% or above, which means that the more the recovered fibers in the gypsum are, the more the flexural strength of the gypsum test piece can be improved.
本发明实施例公开了一种风电叶片回用纤维加强浇筑式石膏墙板的测试方法，包括以下物料：石膏、水、外加材料、外加剂和胶凝材料。该风电叶片回用纤维加强浇筑式石膏墙板的测试方法，经过对比研究分析后，发现掺入不同的缓凝剂不同掺量对石膏制备效果最佳的是柠檬酸，其次是CBMA缓凝剂，酒石酸无缓凝效果；柠檬酸最佳掺量0.2‰，CBMA缓凝剂最佳掺量0.5％，柠檬酸缓凝效果明显，随着水膏比的增大，稠度逐渐增大，凝结时间逐渐延长，抗折、抗压强度均逐渐降低，破坏前的表观密度也逐渐减小，随着回收纤维掺量的增加，石膏试件的绝干密度变化不大，但其抗折抗压强度均逐渐增大，掺量8％及以上增幅明显，代表石膏内回收纤维越多越能提高石膏试件的抗折强度。
Method for testing recycled fiber reinforced pouring type gypsum wallboard of wind power blade
一种风电叶片回用纤维加强浇筑式石膏墙板的测试方法
CAO ZHENTAO (Autor:in) / YUAN WEI (Autor:in) / LIU CHAO (Autor:in)
11.03.2022
Patent
Elektronische Ressource
Chinesisch
Recycled fiber reinforced fiber sulphoaluminate cement wallboard formula for wind power blade
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2020