Replacing natural sand by crushed rock in concrete using nonlinear modelling
Figure: Saint Gobain Weber
Figure: Bulsari et. al.
Figure: Bulsari et. al.
Figure: Nonlinear Solutions Oy
Figure: Nonlinear Solutions Oy
Figure: Nonlinear Solutions Oy
Figure: Nonlinear Solutions Oy
There is a lot of pressure to stop using natural sand and instead use crushed rock or recycled aggregate in concretes. However, crushed rock tends to have sharp corners, which affect not only the rheology of fresh concrete, but they also affect the strength of hardened concrete. So in this work, nonlinear models of a few properties of mortar were developed from experimental data.
There is a lot of pressure to stop using natural sand and instead use crushed rock or recycled aggregate in concretes. However, crushed rock tends to have sharp corners, which affect not only the rheology of fresh concrete, but they also affect the strength of hardened concrete. So it is not possible to add large amounts of crushed rock easily. To be able to determine recipes, which satisfy the specifications of fresh and hardened concrete, we need to know how the composition of the recipe affects the variables of those specifications.
As we have seen in very many cases, the effects are...
