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公开(公告)号：US20240218609A1
公开(公告)日：2024-07-04
申请号：US18148445
申请日：2022-12-30
Inventor： Lai Ming Gordon LEUNG , Ho Him CHAN , Zhihua XIAO , Man Lung SHAM
CPC classification number: E01C3/003 , C04B14/048 , C04B18/22 , C04B26/26 , C04B40/0046 , E01C11/00 , E01C19/02 , C04B2111/0075
Abstract: A fatigue-resistant flexible road structure that includes one or more sub-base structural support layers positioned over a compacted earth foundation. At least one of the sub-base structural support layers is an elastic sub-base layer for more completely distributing surface loads. The elastic sub-base layer includes aggregate, filler, binder, and recycled tire rubber. The recycled tire rubber is included in an amount of 3% to 5% by weight of the sum of aggregate, filler, and rubber. The elastic sub-base layer has a fatigue life at least 25 percent greater than a non-elastic sub-base layer without recycled rubber. Further, the elastic sub-base layer has a modulus of elasticity at least 25 percent lower than a non-elastic sub-base layer without recycled rubber.
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公开(公告)号：US20220112710A1
公开(公告)日：2022-04-14
申请号：US17070917
申请日：2020-10-14
Inventor： Xin Kun LU , Su Ping BAO , Honggang ZHU , Man Lung SHAM
Abstract: The invention relates to a modular integrated construction joint which includes a first building module, a second building module or a structural wall and a joint between the first building module and the second building module or structural wall. The joint includes a flexible seamless stitching system, which provides a long-term firestop, smokestop and waterproof for the joint cavity in-between modules in modular integrated construction (MiC).
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公开(公告)号：US20200157006A1
公开(公告)日：2020-05-21
申请号：US16680511
申请日：2019-11-12
Inventor： Shuai FANG , Yuet Kee LAM , Man Lung SHAM , Honggang ZHU
Abstract: A polymer-modified hybrid-fibers cementitious composition has a one-day compressive strength of at least approximately 17 MPa, a 28-day tensile strength of at least approximately 3.8 MPa, an ultimate tensile strain of approximately 3% to approximately 9%, and a 7-day bond strength of at least approximately 2.3 MPa. A binder of ordinary Portland cement, fly ash, and silica fume is provided. Other components include limestone powder, sand, superplasticizer, and water. The composition further includes one or more of styrene butadiene rubber or ethylene-vinyl acetate copolymer in an amount ranging between approximately 2% and approximately 8% by mass of binder. Fiber additives include steel fibers in an amount ranging between approximately 0.3% and approximately 3.0% by volume of the cementitious composition and polymer fibers in an amount less than approximately 1.0% by volume of the cementitious composition. Chamfers made of the composition are positioned at beam-column joints.
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公开(公告)号：US20180099312A1
公开(公告)日：2018-04-12
申请号：US15726403
申请日：2017-10-06
Inventor： Su Ping BAO , Lei GAO , Man Lung SHAM , Chun Ping WU , Chi Wai LI
CPC classification number: B05D7/222 , B05D1/02 , B05D1/30 , B05D1/42 , B05D5/02 , F15D1/0035 , F15D1/004 , F15D1/0085 , F15D1/06 , F15D1/065 , F16L55/1654
Abstract: A method of applying a riblet structure coating on the internal surface of a pipe includes coating the internal surface of a pipe with a resin layer and applying a cavity mold having a reverse riblet pattern structure to the coated internal surface of the pipe. A flexible air bag is inserted into the interior of the pipe and charged with air to hold the mold against the coated internal surface of the pipe. The air bag may be charged with air for a sufficient amount of time to allow the coating to cure in the riblet shape of the mold. Afterwards, the air bag and the mold are removed from the pipe to yield a pipe coated with an internal riblet structure.
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