RECYCLED CONCRETE PREPARATION
    11.
    发明公开

    公开(公告)号:US20230384206A1

    公开(公告)日:2023-11-30

    申请号:US18359302

    申请日:2023-07-26

    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing recycled concrete aggregate (RCA). One of the methods includes obtaining first optical measurements of RCA particles as the RCA particles are conveyed past the first optical sensors; determining, based on the first measurements, an initial characterization of the RCA particles; iteratively performing a carbonation process on the RCA particles, obtaining second optical measurements of the RCA particles, and determining, from the second measurements, a second characterization of the RCA particles, wherein conditions of the carbonation process are initially set based on the initial characterization, and the conditions of the carbonation process are adjusted based on the second characterization; ceasing the iterative performance of the carbonation process in response to the second characterization meeting target carbonation characteristics; iteratively performing a densification process on the RCA particles, obtaining third optical measurements of the RCA particles, and determining, from the third measurements, a third characterization of the RCA particles, wherein conditions of the densification process are initially set based on the initial characterization or the second characterization, and the conditions of the densification process are adjusted based on the third characterization; and ceasing the iterative performance of the densification process in response to the third characterization meeting target densification characteristics.

    METHODS AND TOOLS FOR SUPPORTING TIMING OF CONCRETE PROCESSING OPERATIONS

    公开(公告)号:US20230383484A1

    公开(公告)日:2023-11-30

    申请号:US18028319

    申请日:2021-09-13

    Applicant: HUSQVARNA AB

    CPC classification number: E01C23/01 E04F21/245 G01N33/383 E01C23/025

    Abstract: A concrete processing system (200) for determining an onset of a first time window (301) for a concrete processing operation in a first area (A), the system (200) comprising one or more concrete sensors (220), a data processing system (240) and a timing support tool (250), wherein the one or more concrete sensors (220) are configured to determine a temperature and/or a moisture level of a maturing concrete slab in the first area (A), and to transmit sensor data indicating the temperature and/or moisture level via respective first communication links (230) to the data processing system (240), the data processing system (240) comprising a database (243) and processing circuitry (242) configured to determine a concrete maturity level for the first area (A) based on the sensor data, to estimate the onset of the first time window based on the concrete maturity level and on data associated with the concrete processing operation stored in the database (243), and to transmit timing data indicating the onset of the first time window to the timing support tool via a second communication link (260), wherein the timing support tool (250) is arranged to support timing of the concrete processing operation in the first area (A) based on the timing data.

    Method for optimizing structure of ECT sensor and analyzing electromagnetic field

    公开(公告)号:US11703474B2

    公开(公告)日:2023-07-18

    申请号:US17433095

    申请日:2020-11-26

    CPC classification number: G01N27/223 G01N27/226 G01N33/383

    Abstract: The present application belongs to the technical field of monitoring of durability of concrete, and particularly relates to a method for optimizing a structure of an electrical capacitance tomography sensor and analyzing an electromagnetic field. A specific process of the method includes eight steps: parameter setting, geometric setting, material setting, mesh generation, physical field setting, solution, sensor structure optimization and calculation of electromagnetic field distribution. The method proposes a new concept for solving a forward problem of an ECT system based on COMSOL software. After modeling is completed, uniformity of a sensitive field of the ECT sensor is analyzed according to calculation results, and structural parameter values of components of the ECT sensor are adjusted to seek an optimal design scheme.

    ELECTRICAL METHODS AND SYSTEMS FOR CONCRETE TESTING

    公开(公告)号:US20230184707A1

    公开(公告)日:2023-06-15

    申请号:US18081401

    申请日:2022-12-14

    Abstract: Concrete can be one of the most durable building materials and structures made of concrete can have a long service life. Consumption is projected to reach approximately 40 billion tons in 2017. Despite this the testing of concrete at all stages of its life cycle is still in its early stages although testing for corrosion is well established. Further many of the tests today are time consuming, expensive, and provide results only after it has been poured and set. Embodiments of the invention provide concrete suppliers, construction companies, regulators, architects, and others with rapid testing and performance data regarding the cure, performance, corrosion of concrete at different points in its life cycle based upon a simple electrical tests that remove subjectivity, allow for rapid assessment, are integrable to the construction process, and provided full life cycle assessment. Wireless sensors can be embedded from initial loading through post-cure into service life.

    METHOD OF MEASURING STATE OF CONCRETE
    17.
    发明申请

    公开(公告)号:US20190017929A1

    公开(公告)日:2019-01-17

    申请号:US16065971

    申请日:2016-12-21

    CPC classification number: G01N21/359 G01N21/274 G01N33/383

    Abstract: To provide a method of measuring a state of concrete capable of easily determining or measuring deterioration of the concrete without using a spectroscopy while maintaining the estimation accuracy. The method of the present disclosure emits an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receives a reflection light of the irradiation light P reflected on the concrete. The method determines at least five wavelengths λ1 to λ5, λ6 to λ10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, and estimates a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion.

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