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A platform for research: civil engineering, architecture and urbanism
Adjustable gravel grading optimization method for concrete
The invention discloses an adjustable and controllable gravel grading optimization method for concrete, and the adjustable and controllable gravel grading optimization method for the concrete comprises the following steps: respectively screening A-grade gravels and B-grade gravels by adopting standard sieves; according to the mass of the screened aggregate, the graded screen residues Ai and Bi of the A-grade broken stone and the B-grade broken stone are calculated; calculating the grading screen residue of the mixed broken stone; determining a compounding proportion; and the screening after compounding is verified, and compared with the theoretical value of compounding, the screening residue difference value of the sieve pore meter is less than or equal to 2%, and the error is within an acceptable range. According to the method, the sample is screened, the sample screening data is utilized, the compounding proportion can be rapidly determined by means of EXCEL and other program software, the method is simple and easy to learn and high in operability, the test workload is greatly reduced, and the working efficiency is improved.
本发明公开了一种可调控的混凝土用碎石级配优化方法，一种可调控的混凝土用碎石级配优化方法，包括以下步骤：对A、B两级碎石分别采用标准筛进行筛分；根据筛分骨料的质量，计算出所述A级碎石和B级碎石的分计筛余Ai和Bi；计算混合后碎石的分计筛余；确定复配比例；验证复配后的筛分，与复配的理论值进行比较，筛孔分计筛余差值≤2％，误差在可接受范围内。本发明通过对样品进行筛分，利用样品筛分数据，可以借助EXCEL等程序软件，能够快速确定复配比例，此方法简单易学，操作性强，大大节约了试验工作量，提高了工作效率。
Adjustable gravel grading optimization method for concrete
The invention discloses an adjustable and controllable gravel grading optimization method for concrete, and the adjustable and controllable gravel grading optimization method for the concrete comprises the following steps: respectively screening A-grade gravels and B-grade gravels by adopting standard sieves; according to the mass of the screened aggregate, the graded screen residues Ai and Bi of the A-grade broken stone and the B-grade broken stone are calculated; calculating the grading screen residue of the mixed broken stone; determining a compounding proportion; and the screening after compounding is verified, and compared with the theoretical value of compounding, the screening residue difference value of the sieve pore meter is less than or equal to 2%, and the error is within an acceptable range. According to the method, the sample is screened, the sample screening data is utilized, the compounding proportion can be rapidly determined by means of EXCEL and other program software, the method is simple and easy to learn and high in operability, the test workload is greatly reduced, and the working efficiency is improved.
本发明公开了一种可调控的混凝土用碎石级配优化方法，一种可调控的混凝土用碎石级配优化方法，包括以下步骤：对A、B两级碎石分别采用标准筛进行筛分；根据筛分骨料的质量，计算出所述A级碎石和B级碎石的分计筛余Ai和Bi；计算混合后碎石的分计筛余；确定复配比例；验证复配后的筛分，与复配的理论值进行比较，筛孔分计筛余差值≤2％，误差在可接受范围内。本发明通过对样品进行筛分，利用样品筛分数据，可以借助EXCEL等程序软件，能够快速确定复配比例，此方法简单易学，操作性强，大大节约了试验工作量，提高了工作效率。
Adjustable gravel grading optimization method for concrete
一种可调控的混凝土用碎石级配优化方法
ZHU ZHONGYI (author) / ZHAO LIZHONG (author) / HU BIN (author) / CHEN DEZHI (author) / NI WEI (author) / SU YAJUN (author) / TANG ZHIFENG (author)
2022-12-20
Patent
Electronic Resource
Chinese
Grading gravel aggregates of 3/8-in. maximum size
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