Light, thermal-insulating and early-strength type cement-based ground self-leveling material and preparation method thereof

Abstract

The invention relates to a light, thermal-insulating and early-strength type cement-based ground self-leveling material and a preparation method thereof. The material comprises the following components in parts by weight: 40-50 parts of ordinary Portland cement, 5-10 parts of rapid-hardening early-strength cement, 5-15 parts of mineral admixtures, 30-40 parts of lightweight aggregate, 1-5 parts of a toughening agent,0.4-1 part of redispersible latex powder, 0.1-0.3 parts of a water reducing agent, 0.1-0.2 parts of an excitant, 0.1-0.3 parts of a defoaming agent and 0-0.2 parts of a water-retaining agent. The material has the beneficial effects as follows: the construction process is simple, the mobility is good, the early strength is high, no contraction appears in the later period, and cracking is avoided, so that the material has better social benefits and economic benefits, and can be widely applied to projects of ground leveling and broken-ground remolding in new houses.

Description

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a light heat-preservation early-strength cement-based ground self-leveling material and a preparation method thereof. Background technique

[0002] Self-leveling material is a new type of ground material that uses inorganic or organic gelling materials as the base material and is modified by adding suitable admixtures for leveling the ground. The ground self-leveling material is mixed into a slurry and then poured on the floor. It will automatically level under the action of its own weight, which can overcome the common quality problem that the flatness of the ordinary cement mortar floor is difficult to control. Cement-based self-leveling mortar has become an ideal building material for modern building ground construction due to its good fluidity and stability, high early strength, fast construction speed, and low labor intensity.

[0003] Compared with d...

Examples

Embodiment 1

[0032] A light heat-preserving and early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 40 parts of 42.5 ordinary Portland cement, 8 parts of 42.5 rapid hardening sulfoaluminate cement, 32 parts of shale sintered pottery sand, A mixture of 8.5 parts of S95 slag powder and 5 parts of Class I fly ash, 5 parts of calcium sulfate whiskers, 1 part of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.2 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, 0.1 part of modified polysiloxane defoamer.

[0033] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.4 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-leveling material slurry of light heat preservation ...

Embodiment 2

[0035] A light heat-preserving and early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 40 parts of 42.5 ordinary Portland cement, 5 parts of 42.5 rapid hardening sulfoaluminate cement, 35 parts of shale sintered pottery sand, A mixture of 10 parts of S95 slag powder and 5 parts of Class I fly ash, 3.5 parts of calcium sulfate whiskers, 0.8 parts of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.3 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, Modified polysiloxane defoamer 0.1 part, hydroxypropyl methylcellulose ether 0.1 part.

[0036] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.4 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-level...

Embodiment 3

[0038] A light heat-preserving early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 45 parts of 42.5 ordinary Portland cement, 5 parts of 42.5 rapid hardening sulfoaluminate cement, 40 parts of shale sintered pottery sand, A mixture of 3 parts of S95 slag powder and 2 parts of Class I fly ash, 3 parts of calcium sulfate whiskers, 1 part of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.3 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, 0.3 part of modified polysiloxane defoamer, 0.2 part of hydroxypropyl methylcellulose ether.

[0039] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.42 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-leveling...

technical field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a light heat-preservation early-strength cement-based ground self-leveling material and a preparation method thereof. Background technique

[0002] Self-leveling material is a new type of ground material that uses inorganic or organic gelling materials as the base material and is modified by adding suitable admixtures for leveling the ground. The ground self-leveling material is mixed into a slurry and then poured on the floor. It will automatically level under the action of its own weight, which can overcome the common quality problem that the flatness of the ordinary cement mortar floor is difficult to control. Cement-based self-leveling mortar has become an ideal building material for modern building ground construction due to its good fluidity and stability, high early strength, fast construction speed, and low labor intensity.

[0003] Compared with d...

Examples

Embodiment 1

[0032] A light heat-preserving and early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 40 parts of 42.5 ordinary Portland cement, 8 parts of 42.5 rapid hardening sulfoaluminate cement, 32 parts of shale sintered pottery sand, A mixture of 8.5 parts of S95 slag powder and 5 parts of Class I fly ash, 5 parts of calcium sulfate whiskers, 1 part of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.2 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, 0.1 part of modified polysiloxane defoamer.

[0033] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.4 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-leveling material slurry of light heat preservation ...

Embodiment 2

[0035] A light heat-preserving and early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 40 parts of 42.5 ordinary Portland cement, 5 parts of 42.5 rapid hardening sulfoaluminate cement, 35 parts of shale sintered pottery sand, A mixture of 10 parts of S95 slag powder and 5 parts of Class I fly ash, 3.5 parts of calcium sulfate whiskers, 0.8 parts of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.3 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, Modified polysiloxane defoamer 0.1 part, hydroxypropyl methylcellulose ether 0.1 part.

[0036] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.4 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-level...

Embodiment 3

[0038] A light heat-preserving early-strength cement-based self-leveling material, the parts by weight of each component are as follows: 45 parts of 42.5 ordinary Portland cement, 5 parts of 42.5 rapid hardening sulfoaluminate cement, 40 parts of shale sintered pottery sand, A mixture of 3 parts of S95 slag powder and 2 parts of Class I fly ash, 3 parts of calcium sulfate whiskers, 1 part of vinyl acetate and ethylene copolymerized redispersible latex powder, 0.3 parts of polycarboxylate ether, 0.2 parts of lithium hydroxide, 0.3 part of modified polysiloxane defoamer, 0.2 part of hydroxypropyl methylcellulose ether.

[0039] Take the above-mentioned raw materials except shale sintered pottery sand, add pre-wetted shale sintered pottery sand after thorough mixing, add water according to the ratio of water to material 0.42 and fully stir to obtain light heat preservation early strength cement base Surface self-leveling material slurry. The basic properties of the self-leveling...