阅读说明：本技术 一种用于测定骨料表观密度的一体式装置和测定方法 (Integrated device and method for determining apparent density of aggregate ) 是由 李俊峰 赫庆彬 王聪辉 冯晓波 王彤 张俊 刘伯春 冯岩 杨玉波 刘磊 于 2021-09-09 设计创作，主要内容包括：本发明公开了一种用于测定骨料表观密度的一体式装置,包括侧面有竖向柱状连通器的盛水筒和能放入盛水筒的网篮,竖向柱状连通器上带有刻度。测定方法：将浸泡24h后的骨料试样按工程要求处理成饱和面干状态,称量骨料质量；将网篮全部浸入装有水的盛水筒中,从柱状连通器的刻度表上读出水面高度；将饱和面干状态的骨料试样全部装入网篮内,全部浸入装有水的盛水筒中,从柱状连通器的刻度表上读出水面高度；按照公式计算出测定的骨料表观密度。本发明相比传统测定装置和方法,方法新颖,结构一体,操作简单,对试验人员要求不高,计算简易,效率较高。(The invention discloses an integrated device for measuring the apparent density of aggregate, which comprises a water containing barrel with a vertical columnar communicating vessel on the side surface and a net basket capable of being placed into the water containing barrel, wherein the vertical columnar communicating vessel is provided with scales. The determination method comprises the following steps: processing the aggregate sample soaked for 24 hours into a saturated surface dry state according to engineering requirements, and weighing the mass of the aggregate; completely immersing the basket into a water containing cylinder filled with water, and reading the water surface height from a scale of the columnar communicating vessel; completely filling the aggregate sample in a saturated surface dry state into a basket, completely immersing the aggregate sample into a water containing cylinder filled with water, and reading the water surface height from a scale of a columnar communicating vessel; and calculating the measured apparent density of the aggregate according to a formula. Compared with the traditional measuring device and method, the method is novel, the structure is integrated, the operation is simple, the requirement on testing personnel is not high, the calculation is simple and easy, and the efficiency is higher.)

1. The utility model provides an integral type device for determining aggregate apparent density which characterized in that, has water containing barrel (2) and basket (3) that can put into water containing barrel that vertical column linker (1) is located to the side, has the scale on vertical column linker (1).

2. The integrated device for determining the apparent density of the aggregate according to claim 1, wherein the water containing barrel (2) is a cylinder with the diameter of 400mm and the height of 600 mm.

3. The integrated apparatus for determining the apparent density of an aggregate according to claim 2, wherein the mesh basket (3) has a mesh diameter of less than 5mm and a diameter and a height of 200 mm.

4. A method for measuring the apparent density of aggregate by using an integrated device, which is characterized by comprising the following steps:

(1) processing the aggregate sample soaked for 24 hours into a saturated surface dry state according to engineering requirements, and weighing the aggregate with the mass of G;

(2) completely immersing the basket into a water containing cylinder filled with water, and reading the water surface height H1 from a scale of the columnar communicating vessel;

(3) completely filling the aggregate sample in the saturated surface dry state in the step (1) into a basket, completely immersing the aggregate sample into a water containing cylinder filled with water, and reading the water surface height H2 from a scale of a columnar communicating vessel;

(4) according to the formulaWherein S is the bottom area of the water containing cylinder, and the apparent density of the aggregate measured at the time is calculated.

Technical Field

The invention relates to a device and a method for measuring the apparent density of aggregate, in particular to an integrated device and a method for measuring the apparent density of aggregate.

Background

In the engineering field, strict technical requirements are always placed on the apparent density of engineering aggregates. The determination of the apparent density of the aggregate is a basic and frequent test operation for engineering material detection. In the traditional aggregate apparent density measurement, a hydrostatic balance consisting of a balance and a hydrostatic device is required, the operation of the hydrostatic balance must meet the operation requirements specified in the hydrostatic balance, particularly, the operation requirements of leveling, weight loading and unloading, weight moving, rebalancing and the like are strict, and the requirement on the manual capability of common operators is extremely high; in the traditional measuring method, an operator is required to hang the basket on a balance, the total mass of the basket, the aggregate and the basket in water is respectively weighed, and then the difference between the two is obtained. The traditional operation device and the traditional operation method are complex in operation and long in time consumption, if the construction period is short and the consumption of engineering aggregate is large, the work load of determining the apparent density of the aggregate is large, the requirements on time and operators are high, and if the personnel configuration is not increased, the development of detection is limited, so that the engineering construction progress is influenced.

Disclosure of Invention

The invention aims to solve the technical problems that the integrated device and the measuring method for measuring the apparent density of the aggregate are easy to operate, simple and easy to operate and low in requirements on detection operators, and solve the problems of large workload of detecting the apparent density of the aggregate, complex operation, short construction period and incapability of configuring high-end detection personnel in engineering construction.

In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an integral type device for determining aggregate apparent density, has the water containing cylinder and the basket that can put into water containing cylinder of vertical column linker including the side, has the scale on the vertical column linker.

The water containing cylinder is a cylinder, the diameter of the water containing cylinder is 400mm, and the height of the water containing cylinder is 600 mm.

The aperture of the net basket is less than 5mm, and the diameter and the height of the net basket are both 200 mm.

An integrated device for determining the apparent density of aggregate, comprising the following steps:

(1) processing the aggregate sample soaked for 24 hours into a saturated surface dry state according to engineering requirements, and weighing the aggregate with the mass of G;

(2) completely immersing the basket into a water containing cylinder filled with water, and reading the water surface height H1 from a scale of the columnar communicating vessel;

(3) completely filling the aggregate sample in the saturated surface dry state in the step (1) into a basket, completely immersing the aggregate sample into a water containing cylinder filled with water, and reading the water surface height H2 from a scale of a columnar communicating vessel;

(4) according to the formulaWherein S is the bottom area of the water containing cylinder, and the apparent density of the aggregate measured at the time is calculated.

The invention has the beneficial effects that: the method is easy to operate, has low requirements on detection personnel, and can greatly improve the detection efficiency.

Drawings

FIG. 1 is a schematic structural diagram of the integrated device for measuring apparent density of aggregate of the invention without aggregate.

FIG. 2 is a schematic view of the measurement of apparent density of aggregate by charging the aggregate in the integrated apparatus for measuring apparent density of aggregate according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in figures 1 and 2, the integrated device for measuring the apparent density of the aggregate comprises a water containing barrel 2 with a vertical columnar communicating vessel 1 on the side surface and a basket 3 capable of containing the water containing barrel, wherein the vertical columnar communicating vessel 1 is provided with scales.

The water containing cylinder 2 is a cylinder, the diameter of the water containing cylinder is 400mm, and the height of the water containing cylinder is 600 mm.

The 3 net apertures of basket are less than 5mm, and diameter and height are 200 mm.

An integrated device for determining the apparent density of aggregate, comprising the following steps:

(1) processing the aggregate sample soaked for 24 hours into a saturated surface dry state according to engineering requirements, and weighing the aggregate with the mass of G;

(2) completely immersing the basket into a water containing cylinder filled with water, and reading the water surface height H1 from a scale of the columnar communicating vessel;

(3) completely filling the aggregate sample in the saturated surface dry state in the step (1) into a basket, completely immersing the aggregate sample into a water containing cylinder filled with water, and reading the water surface height H2 from a scale of a columnar communicating vessel;

(4) according to the formulaWherein S is the bottom area of the water containing cylinder, and the apparent density of the aggregate measured at the time is calculated.

The invention does not need to use a hydrostatic balance which is strictly and complexly operated, does not need to hang the net basket on the balance by a detector, does not need to weigh the quality of the net basket, the net basket and the aggregate in water for many times, has low requirements on the manual ability and the proficiency of the detector, is easy to operate, can greatly improve the detection efficiency, and meets the requirements of tight construction engineering time and large detection amount.

Examples

(1) Processing the aggregate sample soaked for 24 hours into a saturated surface dry state according to engineering requirements, and weighing the aggregate G, wherein the weight G is 8.973 kg;

(2) completely immersing the basket into a water containing cylinder filled with water, and reading the water surface height H1 from a scale of the columnar communicating vessel, wherein H1 is 462 mm;

(3) putting all the aggregate samples in the saturated surface dry state in the step (1) into a basket, immersing all the aggregate samples into a water containing cylinder filled with water, reading out the height H2 of the water surface from a scale of a columnar communicating vessel, wherein H2 is 489mm, and calculating the height difference H2-H1 to be 27 mm;

(4) according to the formulaWherein S is the bottom area of the water containing cylinder, and the data is substitutedThe apparent density ρ of the aggregate measured in this time is 2645kg/m³。

The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.