Development of a large-size soil-concrete using cement-mixing and high pressure mechanical dehydration

(1)为了形成均匀的疏浚土块，需要缩短脱水时间。(2)无侧限抗压强度与水灰比密切相关。由此得出疏浚土块无侧限抗压强度受水灰比控制的结论。(3)在12个月的暴露试验中，当水泥掺量大于22%时，无侧限抗压强度超过20MPa，认为疏浚土块具有足够的耐久性。(4)疏浚土块暴露于潮区和海水下的固着生物种类与其他海洋构筑物相当。因此，疏浚土块可替代混凝土砖、砌块等海洋构筑物的施工材料。

(1) In order to create uniform dredged soil blocks, it is necessary to shortening dehydration time.(2) There is close relationship between unconfined compressive strength and water-cement ratio. Therefore, it is concluded that unconfined compressive strength of dredged soil blocks are controlled by water-cement ratio.(3) Since the unconfined compressive strength exceeded 20MPa for more than cement content 22% in exposing test for 12 months, it is considered that dredged soil blocks have the sufficient durability.(4) The number of species of sessile organisms at dredged soil blocks exposed to tidal area and under seawater is equivalent to other marine structures. Therefore, dredged soil blocks can be alternatively used for construction material of marine structures such as concrete brick and block.