Ultra-strong and tough highway concrete can effectively solve the shortcomings of concrete pavement, such as easy cracking, easy loosening and easy settlement and deformation. The traditional maintenance of concrete pavement takes a long time, and cracks easily occur between new and old concrete, resulting in short maintenance period, high cost and affecting transportation and other issues. In order to solve the shortcomings of highway concrete, fly ash, slag powder, superplasticizer, waterproof agent and expansive agent are added to concrete to improve the density and strength of concrete and enhance the bearing capacity of concrete. Polyacrylonitrile carbon fibers, polyvinyl alcohol carbon fibers, polypropylene mesh carbon fibers, plastic steel carbon fibers, polypropylene carbon fibers and other materials are added into concrete to produce toughness, which makes concrete produce toughness under compression, bending, tension, vibration and friction loads, and effectively compensates for the destructive effect of concrete rigid deformation. Because of the water-soluble bonding function of concrete, the phenomenon of cracks and hollowing between new and old concrete is solved. Ultra-strong and tough highway concrete is mainly used in the construction and maintenance of highway, bridge pavement, ramp and other concrete pavement.
【技术实现步骤摘要】
超强韧性公路混凝土
:适用于新建现浇混凝土公路和桥梁路面材料。适用于混凝土公路的维护保养修补材料,对混凝土公路的开裂和坑坑洼洼进行修补。
技术介绍
:超强韧性公路混凝土的材料主要填补混凝土公路的维护保养材料,做到施工方便快捷,修补后几个小时就可以通车,保障汽车的行驶安全,有效延长公路使用寿命。
技术实现思路
:1、超强度和防渗透性功能;在超强韧性混凝土干搅拌时,掺入粒度小材料的防水材料,填充水泥、砂和碎石之间空隙来提高混凝土密度,防止水渗入混凝土内部,造成混凝土松散和开裂,使混凝土路面从表面和内部受到受到结构上的损坏。2、韧性功能:在超强韧性混凝土干搅拌时,掺入不同规格和形状耐酸性和碱性的碳纤维,使混凝土的三维空间产生韧性作用。有效提高混凝土承载能力;抗拉性能、抗压性能、减振性能、防裂性能等。有效提高混凝土公路质量和延长使用年限。3、早强性功能:在超强韧性混凝土干搅拌时掺入早强剂,使混凝土公路在维修和浇筑后在3个小左右通车,由于维修公路对车辆的通行降到最低程度。4、防冻性能:在超强韧性混凝土干搅拌时掺入抗冻剂,使产品适用于寒冷地区的公路。5、微膨胀性能:在超强韧性混凝土干搅拌时掺入微膨胀材料,克服现浇混凝土时,由于水分蒸发造成体积减少,有效防止新与旧之间的混凝土产生裂纹。6、粘结性能:超强韧性混凝土干搅拌时掺入水溶性粘合材料,防止新和旧混凝土之间开裂、空鼓、分离功能,确保混凝土公路维修和保养的质量。(1)检验依据:GB/T50080-2002《普通混凝土拌合物性能试验方法标准》,GB/T50081-2002《普通混凝土力学性能试验方法标准》,GB/T50082 ...
【技术保护点】
1.超强韧性公路混凝土:混凝土具有高密度、超高强度、韧性、早强、防渗、防冻、防裂、微膨胀特性。
【技术特征摘要】
1.超强韧性公路混凝土:混凝土具有高密度、超高强度、韧性、早强、防渗、防冻、防裂、微膨胀特性。2.超强韧性公路混凝土的材料配方:水泥、砂...
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