JPS581778A - Setting/hardening agent - Google Patents

Abstract

PURPOSE:To obtain a setting/hardening agent that is effective when it is added to a cement with which an organic constitutent-containing muddy substance is set, by adding sodium chloride, etc. and cobalt chloride to a cation C14 solution. CONSTITUTION:The titled setting/hardening agent consists of 0.9-10% (by weight, hererinafter % means % by weight) cation C14, 19-20% sodium chloride, 34-35% potassium chloride, 19-20% calcium chloride, 24-25% magnesium chloride and 0.02-0.03% cobalt chloride. This agent may be blended with a cement milk to be used, and by adding the resulting composition to an organic constitutent-containing muddy substance (e.g. sludge), the muddy substance can be effectively set.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a setting and hardening agent for setting and hardening special soils such as balm, beet, and black top, and sludge, particularly sludge on lake bottoms, muddy water from dams, rivers, etc., with cement.

Special soils, sludge, etc., as mentioned above, contain large amounts of organic components, so even if cement is attempted to set them, the organic components will prevent the hardening of the cement, making it impossible to set them.

The present invention aims to provide a setting and hardening agent that can set organic component-containing muddy substances with cement, which has not been possible in the past.

The setting hardener according to the invention is characterized in that potassium chloride, sodium chloride, calcium chloride and cobalt chloride are added to the cationic CI4 solution.

Acrylic ahalite monomers are cohesive but toxic. The C14 cation system, whose toxicity was neutralized and made harmless by polymerizing acrylmite, has a strong property of adsorbing sludge on organic and inorganic materials with a high ratio of ground water, and by mixing it with cement. 9 q% can be adsorbed. By further increasing the stirring speed, it is possible to adsorb ioo. When adsorbed, cement undergoes a water utilization reaction, causing it to float and sink in the water due to its specific gravity, causing organic matter with low specific gravity to float to the surface, causing the soil to sink. In order to harden it, it must be fixed in water. Therefore, in the present invention, potassium chloride, sodium chloride, calcium chloride, and magnesium chloride are added to advance the ionic reaction (2).Furthermore, cobalt chloride is added (□) to accelerate the reaction and shorten interparticle bonds. The process will proceed smoothly over time, and the sludge will be solidified by the setting power of the cement.

If the present invention is not used and the cement milk is used alone, the cement and mud will separate and become very cloudy, and even if it does set, the strength will be low and there will be a lot of variation.

When using the curing agent of the present invention, generally 3
It was possible to obtain a strength of 5 kp/〆 in 228 days of ky'cm. Furthermore, it was confirmed that there was no cracking between the cement and mud, and there was little variation in strength.

The mixing ratio of the components of the curing agent according to the present invention is as follows.

Cation CI 0.9-10th (weight ratio) Cobalt chloride Q02~(403th) Lucium chloride
19～ko0chi 〃Magnesium chloride Col-ko S
% ヮ Sodium chloride 19 ~ θ 〃 Potassium chloride 3 q ~ 3S 〃 Example Cation C for sludge t M3 of SO steel under water,
410y Cobalt chloride 2# Calcium chloride -2001 Magnesium chloride, 2! rOf Sodium chloride -00g Potassium chloride 011 Cement 100k
g Water 10 (, t3) When the above-mentioned curing agent was added to the organic-rich sludge under the water surface and mixed, the required compressive strength and tensile strength were obtained.

Claims (1)

[Claims] Potassium chloride, sodium chloride, cationic C14 solution,
A setting hardening agent characterized by adding calcium chloride and cobalt chloride.