US 12,478,048 B2
Marine ecological engineering construction method, asphalt cement-based coating, and preparation method thereof
Jianfu Lv, Harbin (CN); Fei Xu, Harbin (CN); Mingjun Wang, Harbin (CN); and Zhenzhen Cao, Harbin (CN)
Assigned to Jianfu Lv, Harbin (CN)
Filed by Jianfu Lv, Harbin (CN)
Filed on Jun. 1, 2022, as Appl. No. 17/830,272.
Application 17/830,272 is a continuation of application No. PCT/CN2020/133101, filed on Dec. 1, 2020.
Claims priority of application No. 201911210405.7 (CN), filed on Dec. 2, 2019; and application No. 201911210495.X (CN), filed on Dec. 2, 2019.
Prior Publication US 2022/0354095 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A01K 61/77 (2017.01); A01K 61/54 (2017.01); C04B 18/02 (2006.01); C04B 18/167 (2023.01); C04B 41/47 (2006.01); C04B 103/00 (2006.01); C04B 103/54 (2006.01); C04B 111/40 (2006.01); C04B 111/74 (2006.01)
CPC A01K 61/77 (2017.01) [A01K 61/54 (2017.01); C04B 18/027 (2013.01); C04B 18/167 (2013.01); C04B 41/478 (2013.01); C04B 2103/0052 (2013.01); C04B 2103/54 (2013.01); C04B 2111/40 (2013.01); C04B 2111/74 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A construction method for marine ecological engineering by discarded concrete blocks, comprising:
(1) surveying a sea area at a location for constructing or modifying a breakwater structure: surveying dominant species of oysters in the sea area and whether the oysters are attached, surveying air temperature, seawater temperature, dissolved oxygen, plankton, total dissolved inorganic nitrogen, active phosphate, active silicate, Ca2+, Zn2+, K+ for the sea area at different seasons, and surveying typhoon times, strength over the years;
(2) preparing a lightweight concrete settlement substrate with a rough surface for oyster, wherein the shape of the lightweight concrete settlement substrate for oyster is one of the shapes of a flat settlement substrate, a wave-shaped settlement substrate and a cylindrical settlement substrate;
(3) quantitatively collecting and cultivating oyster larvae: placing the settlement substrate in a larva collection area of a first local sea area, where the swimming larvae are mainly in metamorphosis period, stopping collecting the larvae once the amount of the settled oyster larvae is 15-25 larvae/100 cm2, and moving the settlement substrate to a second local sea area for floating cultivation;
(4) treating surfaces of discarded concrete blocks: evaluating the alkalinity, the internal ion concentration and the permeability of the discarded concrete; if the pH is more than 12.5, reducing the alkalinity, and spraying or brushing an emulsified asphalt cement-based coating with high bonding strength and high induction for oyster to settle on the surfaces of the discarded concrete blocks;
(5) placing discarded concrete blocks during the concentration period of settlement and metamorphosis of oyster planktonic larvae in the second local sea area, adopting a dispersed placement method, placing the discarded concrete blocks with volume of more than 1 m3 individually;
(6) placing the oyster settlement substrate in site: conveying the oyster settlement substrate in which the gonad of oysters develops into mature stage in the step (2) to the sea area for constructing the breakwater, placing one lightweight concrete oyster settlement substrate with the rough surface on single discarded concrete block or discarded concrete block pile and fixing the lightweight concrete settlement substrate for oyster on single discarded concrete block or discarded concrete block pile through a rope; in addition, feeding algae or replenishing nutritive salts if necessary according to the planktonic condition of the sea area; and
(7) monitoring and managing the state of larval settlement: monitoring the settlement condition of oyster larvae on the rock surface; when the larval settlement density is 30 to 40 larvae/100 cm2, moving away the oyster settlement substrate, and monitoring ecological condition of the breakwater.