我们曾用锯末,石蜡、麻绳及涂蜡麻绳等材料进行过试验,它们的技术经济综合效果都不理想。锯末成本低、来源广,但若撒得不均,漏浆仍十分严重。它易混入混凝土中,严重影响电杆的质量。麻绳虽然密封性好,但合口难清理,成本也高。石蜡易使电杆表面产生蜡斑,影响产品外观质量和耐久性。涂蜡麻绳密封性好,易清理,但成本高。 We have experimented with sawdust, paraffin wax, twine and waxed hemp ropes. Their technical and economical comprehensive results are unsatisfactory. Sawdust has a low cost and a wide range of sources. However, if it is unevenly distributed, the slurry is still very serious. It is easily mixed into concrete and seriously affects the quality of the pole. Although the twine has good sealing, it is difficult to clean the joint and the cost is high. Paraffin wax can easily cause wax spots on the pole surface, affecting the appearance quality and durability of the product. Waxed hemp rope has good tightness, easy to clean, but high cost.