Durability of Ultra High Strength Fibre Reinforced Concrete (UHSFRC) B 150 - B 200

高强混凝土是近年来发展起来的，强度等级高达b115，属于当代混凝土技术的地位。对于更高强度等级的混凝土，范围在150 - 200 N/mm2之间，制造技术和生产工程要么可用，要么已经非常先进，但对这种建筑材料的功能特性知之甚少。特别是缺乏与疲劳和耐久性行为相关的知识是这些超高强度混凝土广泛应用的障碍之一。目前对联合研究项目的请求旨在弥补现有知识的不足，使超高强度混凝土得到更广泛的应用。在预期的工作计划内，这些混凝土的疲劳性能将由荷兰代尔夫特理工大学和卡尔斯鲁厄大学进行耐久性实验。将使用相同混凝土混合料的样品，此外还将实现项目伙伴之间交换经过测试的混凝土样品。特别是，已经在卡尔斯鲁厄进行了耐久性测试的样品将在代尔夫特进行疲劳性能测试，反之亦然。

High strength concretes have been developed within recent years and strength classes up to B 115 belong to the status of contemporary concrete technology. For concretes of even higher strength classes ranging between 150 - 200 N/mm2 fabrication techniques and production engineering are either available or already far-advanced but little is known about functional properties of such construction materials. Particularly the lack of knowledge associated with fatigue and durability behaviour is one of the obstacles to a wider application of these ultra high strength concretes. The present request for a joint research project aims at compensating the existing knowledge deficiency towards a broader application of ultra high strength concretes. Within the intended working plan, the fatigue behaviour of these concretes will be investigated by TU Delft in The Netherlands, and University Karlsruhe will carry out experiments on durability. The samples of the same concrete mixes will be used and in addition an exchange of tested concrete specimens between the project partners will be realized. In particular samples already tested for durability in Karlsruhe are going to be examinated in Delft with regard to their fatigue behaviour and vice versa.