阅读说明：本技术 一种砂浆 (Mortar ) 是由 周兆弟 于 2019-04-30 设计创作，主要内容包括：本发明公开了一种砂浆,该砂浆包括胶凝浆料和拌混在胶凝浆料中的颗粒物,胶凝浆料的密度值大于水的密度值且小于或等于颗粒物的密度值,至少部分数量的颗粒物悬浮于胶凝浆料中,能够防止颗粒物在运输作业中快速沉降造成堵管或砂浆成分不稳定,颗粒物的最大粒径小于砂浆输送管道的最小内直径,且具有粘度的胶凝材料能够将作为骨料的颗粒物包裹并均匀地粘在一起,胶凝浆料可提高颗粒物在砂浆输送管道内的流动性,这种砂浆输送顺畅性能够保证搅拌桩机施工作业的连续、高效、无故障；还能减轻颗粒物对砂浆输送管道的磨损,提高砂浆输送管道的使用寿命。(The invention discloses mortar, which comprises gelled slurry and particles mixed in the gelled slurry, wherein the density value of the gelled slurry is greater than the density value of water and less than or equal to the density value of the particles, at least part of the particles are suspended in the gelled slurry, the particles can be prevented from rapidly settling in the transportation operation to cause pipe blockage or unstable mortar components, the maximum particle size of the particles is less than the minimum inner diameter of a mortar conveying pipeline, the gelled material with viscosity can wrap and uniformly stick the particles serving as aggregates together, the gelled slurry can improve the flowability of the particles in the mortar conveying pipeline, and the smooth mortar conveying performance can ensure the continuity, high efficiency and no fault of the construction operation of a stirring pile machine; the abrasion of particles to the mortar conveying pipeline can be reduced, and the service life of the mortar conveying pipeline is prolonged.)

1. A mortar is characterized by comprising a gelled slurry and particulate matters uniformly mixed in the gelled slurry, wherein the density value of the gelled slurry is greater than that of water and less than or equal to that of the particulate matters.

2. A mortar, comprising a cementitious slurry and particulate matter intermixed in the cementitious slurry, the cementitious slurry having a density value greater than that of water and at least a portion of the particulate matter in a quantity suspended in the cementitious slurry;

the maximum particle size of the particles is smaller than the minimum inner diameter of the mortar conveying pipeline, and the gelled slurry can improve the flowability of the particles in the mortar conveying pipeline and/or reduce the abrasion of the particles on the mortar conveying pipeline.

3. The mortar of claim 1 or 2, wherein the weight ratio of the cementitious slurry to the particulate matter is 1:5 to 20: 1.

4. Mortar according to claim 1, 2 or 3, characterized in that the cementitious slurry comprises, in weight ratio, 3: 10-5: 1 and thickening powders;

wherein the density value of the suspension is 0.5-1.9 g/cm³And/or the viscosity value of the suspension is 1-50 s;

preferably, the density value of the suspension is 1.0-1.5 g/cm³And/or the viscosity value of the suspension is 18-40 s;

preferably, the density value of the suspension is 1.15-1.3 g/cm³And/or the viscosity value of the cementing material is 20-35 s;

preferably, the density value of the suspension is 1.20-1.25 g/cm³And/or the viscosity value of the suspension is 20-30 s.

5. The mortar of claim 4, wherein the weight ratio of the suspension to the thickening powder is 1: 2-5: 1;

the thickening powder comprises one or more of cement, silt, slag powder, kaolin powder, clay powder and resin rubber powder.

6. Mortar according to claim 1 or 2 or 3, characterized in that the cementitious slurry comprises a suspension and cement in a weight ratio of 3: 10-5: 1;

Wherein the suspension is a soil and water mixed solution;

preferably, the gelled slurry further comprises one or a combination of several of slag powder, kaolin powder, lime powder, resin rubber powder, magnetite powder, gangue powder and coal slime powder.

7. The mortar of claim 6, wherein the weight ratio of the suspension to the cement is 1: 2-5: 1;

preferably, the weight ratio of the suspension to the cement is 1: 1-3: 1;

preferably, the weight ratio of the suspension to the cement is 1: 1-1.3: 1.

8. Mortar according to claim 4 or 6, characterized in that the cementitious slurry also comprises dispersants and/or lubricants and/or antifreeze agents and/or retarders and/or swelling agents and/or pumping agents and/or thickeners.

9. Mortar according to claim 1 or 2, characterized in that the particulate matter is one or a combination of several of river sand, pulverized coal particles, mineral powder particles, ceramsite, construction waste particles and waste molding sand.

10. Mortar according to claim 1 or 2, characterized in that the particles have a size of 0.3 to 6 mm;

the weight ratio of the gelled slurry to the particles is 3: 10-2: 1;

preferably, the weight ratio of the gelled slurry to the particles is 2: 3-3: 2;

Preferably, the particle size of the particulate matter is 0.5 mm to 4 mm;

preferably, the particle size of the particulate matter is 0.5 mm to 3 mm.

Technical Field

The invention relates to the technical field of building materials, in particular to mortar.

Background

The stirring pile is a soft foundation treatment mode, cement mortar is used as a main agent of a curing agent, and curing agent slurry is sprayed into a soil body by using a stirring pile machine and is fully stirred, so that the curing agent and the soil body generate a series of physical and chemical reactions, and soft soil is hardened to improve the foundation strength. The conventional mixing pile sprays curing agent such as cement or cement paste while mixing, so that the curing agent is mixed with soil and then is cured into cement mixing pile under the action of the curing agent, thereby improving the soil strength of the mixing area and achieving the effects of soil retaining and water stopping.

However, since the aggregate is insufficient, the improvement of the strength of the mixing pile formed by spraying or mixing the pure cement slurry as the curing agent is limited, and in order to achieve a stronger mixing pile strength, it is necessary to add the granular aggregate to the curing agent as the skeleton of the mixing pile to further improve the strength of the mixing pile. In the using process, the curing agent slurry is conveyed to the slurry spraying head to be sprayed out along the mortar conveying pipeline through the mortar pump, and the curing agent slurry stays and is conveyed in the mortar conveying pipeline for a short time, in the process, the curing agent slurry needs to keep certain fluidity and stabilize the suspension of each component, so that the granular aggregate with heavier components is prevented from rapidly settling in the mortar conveying pipeline, the aggregate component for improving the strength of the stirring pile is difficult to stably mix with the curing agent, and the gravity is easily precipitated at the bottom of the mortar conveying pipeline to cause pipe blockage, so that the component of the sprayed curing agent slurry is unstable or the mortar conveying pipeline is blocked by the aggregate, and the forming quality of the stirring pile or the normal operation of the slurry spraying operation of the stirring pile machine is influenced.

Disclosure of Invention

The invention aims to solve the problem that the existing mortar for the mixing pile is not smoothly conveyed due to the improvement of strength, and provides the mortar with high strength and smooth conveying.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

a mortar has a cementitious slurry and particulate matter intimately mixed in the cementitious slurry, the cementitious slurry having a density value greater than that of water and less than or equal to that of the particulate matter.

The mortar provided by the invention comprises a gelled slurry and particulate matters mixed in the gelled slurry, wherein the density value of the gelled slurry is greater than that of water, and at least part of the particulate matters are suspended in the gelled slurry;

the maximum particle size of the particles is smaller than the minimum inner diameter of the mortar conveying pipeline, and the gelled slurry can improve the flowability of the particles in the mortar conveying pipeline and/or reduce the abrasion of the particles on the mortar conveying pipeline.

In the mortar provided by the invention, the weight ratio of the gelled slurry to the particles is 1: 5-20: 1.

In the mortar provided by the invention, the gelled slurry comprises the following components in parts by weight: 10-5: 1 and thickening powders;

wherein the density value of the suspension is 0.5-1.9 g/cm³And/or the viscosity value of the suspension is 1-50 s.

In the mortar provided by the invention, the density value of the suspension is 1.0-1.5 g/cm³And/or the viscosity value of the suspension is 18-40 s.

In the mortar provided by the invention, the density value of the suspension is 1.15-1.3 g/cm³And/or the viscosity of said cementitious materialThe value is 20 to 35 s.

In the mortar provided by the invention, the density value of the suspension is 1.20-1.25 g/cm³And/or the viscosity value of the suspension is 20-30 s.

In the mortar provided by the invention, the weight ratio of the suspension to the thickening powder is 1: 2-5: 1;

the thickening powder comprises one or more of cement, silt, slag powder, kaolin powder, clay powder and resin rubber powder.

In the mortar provided by the invention, the gelled slurry comprises a suspension and cement, wherein the weight ratio of the suspension to the cement is 3: 10-5: 1;

wherein the suspension is a soil and water mixed solution,

in the mortar provided by the invention, the gelled slurry also contains one or a combination of several of slag powder, kaolin powder, lime powder, resin rubber powder, magnetite powder, gangue powder and coal slime powder.

In the mortar provided by the invention, the weight ratio of the suspension to the cement is 1: 2-5: 1,

in the mortar provided by the invention, the weight ratio of the suspension to the cement is 1: 1-3: 1,

in the mortar provided by the invention, the weight ratio of the suspension to the cement is 1: 1-1.3: 1.

In the mortar provided by the invention, the gelled slurry also comprises a dispersant and/or a lubricant and/or an antifreeze and/or a retarder and/or an expanding agent and/or a pumping agent and/or a thickening agent.

In the mortar provided by the invention, the particulate matter is one or a combination of a plurality of river sand, pulverized coal particles, mineral powder particles, ceramsite, building garbage particles and waste molding sand,

in the mortar provided by the invention, the particle size of the particles is 0.3-6 mm, and the weight ratio of the gelled slurry to the particles is 3: 10-2: 1.

In the mortar provided by the invention, the weight ratio of the gelled slurry to the particles is 2: 3-3: 2.

In the mortar provided by the invention, the particle size of the particles is 0.5 mm to 4 mm.

In the mortar provided by the invention, the particle size of the particles is 0.5 mm to 3 mm.

The mortar provided by the invention comprises gelled slurry and particulate matters mixed in the gelled slurry, wherein the density value of the gelled slurry is greater than that of water and less than or equal to that of the particulate matters, and at least part of the particulate matters are suspended in the gelled slurry; the method can prevent pipe blockage or unstable mortar components caused by rapid sedimentation of particles in the transportation operation, the maximum particle size of the particles is smaller than the minimum inner diameter of the mortar conveying pipeline, the cementing material with viscosity can wrap and uniformly stick the particles serving as aggregate together, the cementing slurry can improve the flowability of the particles in the mortar conveying pipeline, and the smooth mortar conveying performance can ensure the continuity, high efficiency and no fault of the construction operation of the mixing pile machine; the abrasion of particles to the mortar conveying pipeline can be reduced, and the service life of the mortar conveying pipeline is prolonged.

Detailed Description

< example one >

The mortar provided by the embodiment is preferably used as a construction operation material of a mixing pile machine, and can reach the strength grade of C5-C15 after being solidified. The mortar comprises gelled slurry and particulate matters uniformly mixed in the gelled slurry, wherein the density value of the gelled slurry is greater than that of water and less than or equal to that of the particulate matters.

The method is characterized in that the particulate matters are mixed in the gelled slurry, at least part of the particulate matters are suspended in the gelled slurry, and the density value of the gelled slurry is close to the density value of the particulate matters in order to ensure that the particulate matters can be stably suspended in liquid gelation without sedimentation or the smaller part of the particulate matters slowly sediments to ensure the stability of mortar components.