This paper evaluates the effect of two kinds of recycled coarse aggregate with different sized particles on the performance of concrete. The test program is introduced, which investigated the compressive strength, axial compressive strength, the mass loss rate of concrete specimens after a freeze-thaw cycle and dynamic elasticity modulus change. The results show that the mechanical properties of the concrete decreased when it was prepared with recycled aggregate having the same size as that of the natural aggregates. The strength of the concrete with large-size recycled aggregate increased, and then decreased as the blend proportion rose above 50%. The strength of concrete incorporating oversized recycled aggregates exhibited a trend of rising and then falling with increasing mixing ratio. The 28-day compressive strength reached 45Mpa when the mixing amount was 50%. The durability of the large-size recycled aggregate was also found to improve compared with the freezing and thawing cycle experiments. These results provide a reference for research on the performance of recycled aggregate concrete.

Shadow banking in China has been growing rapidly; banks use wealth management products aggressively to evade regulatory constraints. The loan-to-deposit ratio or LDR targets both sides of the balance sheet; loans in terms of asset-side, and deposits in terms of liabilitiesside; banks needed to control and maintain both sides. Regulators restricted Chinese banks to maintain a 75% limit for their loan-depositratio. Banks’ needed to either lower their loans or increase the deposits; WMPs helped banks to evade this limit. Banks issue more WMPs to control and manage a 75% statutory ceiling LDR. This WMPs-LDR positive association disappeared post-2015 period. This study empirically examined how Chinese banks use WMPs issuance to avoid regulatory constraints. Quarterly panel data for 30 top Chinese banks were used by analyzing pre-2015 (during the 75% LDR limit) and post-2015 (after removal of the LDR limit). This study also performed fixed-effects model as recommended by the Hausman specification test, with feasible generalized least squares FGLS estimation technique. The results of this study show that for the pre-2015 period, Chinese banks use issuance of WMPs aggressively to manage their LDR limit; this WMPs-LDR relationship disappeared post-2015 period. Moreover, SMBs use WMPs more eagerly as compare to Big4 banks.