CN206671121U - A kind of strength cement-based grouting material fluidity determines disk - Google Patents

Abstract

The utility model relates to a cement-based grouting material fluidity measuring disc, which comprises a three-rod rigid body bearing shaft, a foot screw, an annular rigid body bearing platform, a circular cross scale plate, a square glass plate, a circular level bubble, and a fixing card. The foot screw, the annular rigid body bearing platform and the circular level bubble are all fixed on the three-bar rigid body bearing shaft, and the circular cross scale plate is embedded in the inner circle of the annular rigid body bearing platform and fixed on the three-bar rigid body bearing shaft. Horizontally rotated, the fixing cards are arranged at equal intervals on the outer ring edge of the annular rigid body cap, and the square glass plate is placed on the annular rigid body cap. The utility model can conveniently and quickly adjust the level of the measuring disc; since the circular cross scale plate can be rotated horizontally, when the grouting material stops flowing freely without disturbance, the maximum diffusion diameter of the slurry can be found and measured by rotating the circular cross scale plate. Calculate the average value of the diameter perpendicular to it, and the data is closer to the real value; since the glass plate is placed on the ring-shaped rigid platform, the slurry can be cleaned and recovered without secondary leveling.

Description

A cement-based grout fluidity test plate

technical field

The utility model relates to a tool for measuring the performance of cement mortar, in particular to a tool for measuring the fluidity of cement-based grouting materials.

Background technique

In the preparation test of cement-based grouting materials, it is necessary to measure the fluidity of cement-based grouting materials through a large number of tests. According to JG/T 408-2013 "Sleeve Grouting Materials for Reinforced Bar Connections", the fluidity measurement steps are: square glass Place the plate horizontally; moisten the stirring pot and stirring blades without any open water; add water and stir for 240s while moistening the square glass plate and the inner wall of the truncated cone mold without any open water, place the truncated cone mold in the middle of the square glass plate; place the cement base Pour the grout into the truncated cone mold until the slurry is level with the upper mouth of the truncated cone mold, and slowly lift the truncated cone mold to allow the slurry to flow freely without disturbance until it stops; measure the maximum diffusion diameter of the slurry and the diameter perpendicular to it, Calculate the average value; put the slurry on the glass plate into a stirring pot, and take measures to evaporate the water content of the slurry, repeat the above steps after 30 minutes, and the measurement result is the 30-minute retention value of the fluidity.

In the prior art, the Chinese patent with the patent number CN200920032053.6 discloses a cement slurry fluidity measuring disc, which includes a smooth circular plate body, and a plurality of plates are arranged at equal intervals on the circumference of the circular plate body Horizontal adjustment nut; on the plate surface of the circular plate, two mutually perpendicular scale marks are set through the center of the circular plate, and with the center of the circular plate as the center, there are multiple concentric circle marks ; A circular level bubble is arranged at the center of the circular plate body. This technology improves some deficiencies of the traditional measurement method, and makes the square glass plate in a horizontal position, which facilitates the cleaning of the square glass plate and reading of data, and reduces the error. But there are still deficiencies:

(1) According to the principle of determining a plane by three points, there should be no more than three horizontal adjustment nuts on the circular plate, otherwise it is redundant and not conducive to the rapid adjustment of the horizontal position of the square glass plate;

(2) The standard requires measuring the maximum diffusion diameter of the slurry and the diameter perpendicular to it, and calculating the average value. Since the positions of the two mutually perpendicular scale marks set in the center of the circular plate are fixed, even if there are multiple concentric circle marks, the maximum diffusion diameter cannot be accurately found and read;

(3) Although the square glass plate is changed to a circular shape, it is still not convenient to clean the glass plate, and it is also inconvenient to recover the slurry when testing the 30-min retention value of the slurry fluidity.

Utility model content

In order to solve the problems raised in the background technology, the utility model improves a cement paste fluidity measuring disc into a cement-based grouting material measuring disc on the basis of the patent described in the background technology. The cement-based grouting fluidity measuring disc has reasonable design, simple structure, convenient use and accurate measurement.

The technical scheme adopted by the utility model is: a cement-based grouting material fluidity measuring plate, including a three-rod rigid body bearing shaft 1, a foot screw 2, an annular rigid body bearing platform 3, a circular cross scale plate 4, and a square glass plate 5, It is characterized in that: the three-rod rigid body bearing 1 is a rigid body bearing composed of three equal-length rod shafts connected at one point at an equal angle; the end of the three-rod rigid body bearing 1 is provided with a foot screw 2 that is easier to adjust the level; The rigid bearing platform 3 is fixed on the three-bar rigid bearing shaft 1, and its ring center is on the connecting point of the three-bar shaft; the circular cross scale plate 4 is embedded in the inner circle of the annular rigid bearing platform 3 and fixed on the connecting point of the three-bar shaft And it can rotate horizontally around this point; the square glass plate 5 is placed on the annular rigid body platform 3 .

Preferably, a circular level bubble 6 is provided on the connection point of the three-bar shaft of the three-bar rigid body bearing 1 .

Preferably, there are three footscrews 2 arranged at the end of the rod shaft of the three-rod rigid body bearing 1 in total.

Preferably, the ring-shaped rigid platform 3 is made of rigid material, and four fixing clips 7 are arranged at equal intervals on the outer edge of the ring.

By adopting the scheme of the utility model, the level of the cement-based grouting material measuring plate can be quickly adjusted through the three foot screws 2 and the circular level bubbles at the connection points of the three rod shafts; A fixed clip 7 can quickly fix the square glass plate 5, and make the center of the square glass plate 5 be on the connecting point of the three-bar shaft, that is, on the center of the circular cross scale plate 4; after the grouting material stops flowing freely without disturbance, it can be rotated There is a circular cross scale plate 4 with a cross-shaped scale to find out and measure the maximum diffusion diameter of the slurry and the diameter perpendicular to it, and calculate the average value; because the square glass plate 5 can still be taken off, it is also used when cleaning and reclaiming the slurry. It is very convenient, and there is no need to level the measuring disc again.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural split diagram of the utility model;

In the figure: the names corresponding to each mark are three-bar rigid body bearing 1, foot screw 2, annular rigid body support 3, circular cross scale plate 4, square glass plate 5, circular level bubble 6, and fixing card 7.

detailed description

Fig. 1 is a schematic structural view of the utility model, and Fig. 2 is a disassembled structure diagram of the utility model, which includes a three-bar rigid bearing shaft 1, a foot screw 2, an annular rigid bearing platform 3, a circular cross scale plate 4, and a square glass Plate 5, circular level bubble 6, fixed card 7. The three-bar rigid body bearing 1 is a rigid body bearing composed of three equal-length rod shafts connected at one point at equal angles. The end of the rod shaft is provided with a foot screw 2 that is easier to adjust the level, that is, the foot screw for adjusting the level on the level. A circular level bubble 6 is provided at the connection point of the three-bar shaft. According to the principle of determining a plane by three points, the level of the three-bar rigid body bearing 1 can be quickly adjusted with the foot screw 2 and the circular level bubble 6; due to the square glass plate 5 is placed on the ring-shaped rigid body bearing 3, and the ring-shaped rigid body bearing 3 is fixed on the three-bar rigid body bearing 1 and it is made of rigid material and is not easy to deform. Therefore, after the three-bar rigid body bearing 1 is adjusted horizontally, the square glass plate 5 is also horizontal; the circular cross scale plate 4 is embedded in the inner circle of the annular rigid body cap 3 and fixed on the connection point of the three-bar shaft and can rotate horizontally around this point. When the grouting material stops flowing freely without disturbance, it can Find and measure the maximum diffusion diameter of the slurry and the diameter perpendicular to it by rotating the circular cross scale plate 4 with a cross-shaped scale, and calculate the average value; four fixed The card 7 can fix the square glass plate 5, and can ensure that the center of the fixed square glass plate 5 is on the connecting point of the three rods, that is, on the center of the circular cross scale plate 4, so that the measurement data is more accurate and true; the square glass plate 5 can be Removed for easier cleaning and recycling without re-leveling the assay plate.

Claims (4)

1. A cement-based grout fluidity measuring disc, comprising three-bar rigid body bearing shaft (1), foot screw (2), annular rigid body bearing platform (3), circular cross scale plate (4), square glass plate ( 5), characterized in that: the three-rod rigid body bearing (1) is a rigid body bearing composed of three equal-length rod shafts connected at one point at an equal angle; the end of the three-rod rigid body bearing (1) is provided with a more easily adjustable level The foot screw (2); the annular rigid body bearing (3) is fixed on the three-bar rigid body bearing shaft (1), and its ring center is on the connection point of the three-bar shaft; the circular cross scale plate (4) is inlaid on the annular rigid body bearing The platform (3) is fixed on the inner circle of the three rod shafts and can rotate horizontally around the point; the square glass plate (5) is placed on the ring-shaped rigid body bearing platform (3). 2. A cement-based grouting material fluidity measuring plate according to claim 1, characterized in that: a circular level bubble (6) is arranged on the connecting point of the three-bar shaft of the three-bar rigid body bearing (1). 3. A cement-based grouting material fluidity measuring disc according to claim 1, characterized in that: there are three foot screws (2) arranged at the end of the rod shaft of the three-bar rigid body bearing (1). 4. A cement-based grouting material fluidity measuring plate according to claim 1, characterized in that: the annular rigid body cap (3) is made of rigid material, and four fixing clips (7) are arranged at equal intervals on the outer edge of the ring.