JPH06263509A - Packed mortar - Google Patents

Abstract

PURPOSE:To obtain a packed mortar suitable to apply to mortar for wall ground or mortar for joint. CONSTITUTION:A proper amount of water is added to 1-6 pts.wt. lime, 1-15 pts.wt. calcium carbide, 35-45 pts.wt. sand, 0.1-0.5 pts.wt. cement, 0.1-0.3 pts.wt. hardening retarder and 0.03-0.1 binder and the mixture is kneaded and then packed into a bag to provide the objective packed mortar.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging mortar intended for wall mortar or joint mortar.

[0002]

2. Description of the Related Art Conventionally, packaging cement mortar containing a retarder has been known as a mortar for roof tiles (Japanese Patent Application No. 62-
312585).

[0003]

Since the conventional packaging cement mortar described above does not contain calcium carbonate, it is insufficient in viscosity and strength as other mortar for wall foundation.

Ordinary wall base or joint mortar mixes the necessary materials on site and kneads with water, so if it is made too large, there is the problem that hardening will start before the end of use, and it will be too small. When it was made, the kneading time was longer than the coating work time, and there was a risk of a drop in efficiency.

[0005]

However, since the present invention uses the packaging mortar, it is only necessary to open the bag for the required amount, eliminating the on-site kneading work, and solving the above-mentioned conventional problems.

That is, the present invention comprises 1 to 6 parts by weight of lime, 1 to 15 parts by weight of calcium carbide, 35 to 45 parts by weight of sand, 0.1 to 0.5 parts by weight of cement, and a retarder of 0.1 to 0.3. A packaging mortar characterized by adding parts by weight and an appropriate amount of water, kneading, and bagging the mixture. In another invention, 5 parts by weight of lime, 10 parts by weight of calcium carbide, 40 parts by weight of sand, 0.3 part by weight of cement, 0.2 part by weight of molasses, 0.08 part by weight of binder and 3.5 parts by weight of water are added. A packaging mortar characterized by being kneaded and packaged. As the setting retarder in the above, for example, molasses is used, but in general, any agent that loses the setting retarding effect by contact with air (for example, one containing a polyol complex) can be used.

The mortar described above may or may not contain a binder (such as ivy or fiber).

According to the present invention, a predetermined amount of a curing retarder is mixed in a required material, water is added and the mixture is kneaded, and then sealed in a synthetic resin bag (made of a non-breathable synthetic resin film).

The mortar of the present invention can be used in place of mortar applied to a lath board or the like, joint mortar and cement mortar used for general construction.

[0010]

According to the present invention, since the hardening retarder is put in the mortar composed of lime, calcium carbide, etc. and sealed,
You can open and use only the necessary amount when needed,
It is possible to provide a mortar having excellent adhesiveness and strength.

[0011]

Example: 6 kg of lime, 10 kg of calcium carbide, 40 k of sand
g, 0.3 kg of cement, 200 cc of molasses, and 0.05 kg of binder, add 3.0 liters of water and knead uniformly,
60 kg of kneaded material was obtained. 20 kg of this was packed in a thick (0.2 mm thick) vinyl chloride bag to give a product.

The above-mentioned packaging mortar was found to have the same performance as that immediately after kneading even after 180 days had passed. Further, it was confirmed that the mortar remaining after use could be used after 24 hours by keeping it sealed. Further, the curing speed after coating is not much different from that of the mortar containing no curing retardant.

Conventionally, a mixture of lime, sand, a small amount of cement and a binder is mixed and kneaded on-site as a wall base, and it is used, but not only it can be mixed more uniformly than on-site kneading mortar, but also the strength and viscosity are stable. Can be made.

[0014]

According to the present invention, since calcium carbide is added to a conventionally known mortar for wall foundations, joints, etc., a hardening retarder is added and the mortar is packaged in a sealed bag. When necessary, if the package is opened and only the required amount is taken out and used, and the rest is sealed again, there is an effect that it can be used at a later date.

Since calcium carbide is added, it has the effects of increasing the viscosity of the mortar and enhancing its strength.

The mortar of the present invention has a higher strength than the mortar used conventionally (see FIG. 1).

[Brief description of drawings]

FIG. 1 is a graph of strength-days of a mortar of the present invention and a mortar of conventional use.

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Claims (3)

[Claims] 1. 1-6 parts by weight of lime, 1-calcium carbide
15 parts by weight, sand 35-45 parts by weight, cement 0.1-
A packaging mortar characterized by adding 0.5 parts by weight, 0.1 to 0.3 parts by weight of a setting retarder and an appropriate amount of water, kneading, and bagging this. 2. The packaging mortar according to claim 1, wherein the setting retarder is molasses. 3. Lime 5 parts by weight, calcium carbide 10 parts by weight, sand 40 parts by weight, cement 0.3 parts by weight, molasses 0.2.
A packaging mortar characterized by kneading parts by weight, 0.08 parts by weight of a binder and 3.5 parts by weight of water, and packaging the mixture.