JPS59210985A - Auxiliary for curing acceleration - Google Patents

Abstract

PURPOSE:To provide an auxiliary for acceleration of curing which controls the solidifying rate of a quick lime-based breaking agent, develops high strength in a short time and has high-level safety, prepd. by mixing a sol. inorganic aluminum salt with a (bi)carbonate of alkali metal. CONSTITUTION:The auxiliary is prepd. by blending (A) at least one water-sol. inorganic aluminum salt (e.g. aluminum sulfate or aluminum chloride), (B) (bi) carbonate of an alkali metal (e.g. sodium carbonate or potassium carbonate) and pref. (C) at least one isolating agent (e.g. alumina cement). The auxiliary is added in an amt. of 0.5-20wt% to a quick lime-based breaking agent which utilizes hydration of quick lime. By varying the amt. of addn. of the auxiliary, it is made possible to control solidification starting time and promote strong solidification before heat generation takes place.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a modification aid for η, E1-based crushing agents that utilizes the hydration reaction of quicklime.

Now 1], Concrete 1 - Soup "◇) \', ' Stones, etc. Jj'J,? Resulting bulge 1
(Crushing due to action, j′,,)
The crushing agents of each 111 (I; I, +) are indicated.

These crushing agent compositions include η carp 11. Expansion of u
Yaki, 1.) Sword! y is fixed for 4 hours, and the mixture of ash and rement is made.
, oxidizing power Rusoum or oxidizing Macscrew ', / J! , Total 1, ~ White J-ru (, 13, tIM combination of calcined material and hydraulic cement with calcium sulboalumine-1-based delivery agent or chloride kaltz "horn"), two things (q, blasphemy,
11] 1980 River 1! l it 5 (1'r”＞public)
Condolences, I11 Kaisho 57-1, I 6954 υ (・order,
A mixture of raw stone jhi, portlandoum alumina 1, etc., former boyfriend crushing punishment (unexamined patent publication 1
, 1-4 5 7 1 8 8 0 4 4 -'i
~ Ko ('13), NoIF Lime L: SJJ, 'iJu.

At least one kind of polyhydric J' alcohol, etc., at least one kind of i'r% alkali, a little amount of alkali salts (both one kind, hydraulic fluid such as calcyrano, full J' l:I "j' luminate, etc.)" Destructive publication with mixed interests (4J1 Kaisho 57-135 () 5
Various quicklime-based expansion crushing agents and crushing agents that control the hardening speed of these crushing agents are known, such as 3Σ Publication). (Side) In this specification, these are collectively referred to as raw stone-based crushing agents. However, biometallic-based expanding crushing agents do not necessarily harden with sufficient strength in the 9th period. , 1L5C:Z l=
, 1. Uncured strength or insufficient assimilation 11. '1 = Heat generation =/) Expansion of crushing agent 1. Each step and 7 are put on a cow,
In addition, when the crushing agent in the θ: cut state was poured into the hole drilled in the building etc. of 21-1~, it was probably a sudden rush of air that was trapped (
The so-called gun phenomenon, which is the phenomenon of expansion and jetting caused by the foaming of the crushing agent, can be seen, and it is necessary to pay careful attention to the safety of the work, and for this reason, various improvements have been made. Although proposals have been made, it is still difficult to see that sufficient solutions have been provided.

This situation can be explained in 11 "Question 11 [Eh, the present invention - JQ MJ Is it possible to control the assimilation rate of the quicklime-based crushing agent?
As a result of conducting various tests on hardening accelerators that exhibit high strength in I, we found that water-soluble inorganic aluminidino,
If the amount of salt and carbonate or bicarbonate of alkali metal is added to the crushing agent, the rate of assimilation will be significantly accelerated.
Furthermore, by selecting the amount added, the intercostal space at which solidification starts can be adjusted to (±1 mouth), solidification progresses before heat generation occurs, and the occurrence of the gun phenomenon is virtually eliminated. It was discovered that this can be suppressed, and the present invention was obtained.

Immediate non-invention is uJl tolerance jH! 4 units of aluminum, 1 salt of at least 14. ) with at least 14 F of carbonate or bicarbonate powder of stone (both type 1 and alkali gold) and alumina cement. 1 k (ii)
;Providing a stimulant for the hardening of punishment.

The present invention will not be described in further detail below.

In the second aspect of the present invention, the cold inorganic aluminum salt (111) is a crushing agent, the auxiliary agent of the present invention, and the required amount of water, and when it is made into a slurry, it dissolves quickly and f! Any inorganic aluminium salt that exhibits water/8 decomposition properties under the conditions of use is sufficient, such as aluminum chloride, basic aluminum chloride, polyaluminum chloride, aluminum nitrate, and aluminum sulfur. , jp Basic aluminum sulfate, double salts of aluminum sulfate, etc., are particularly easy to obtain and are excellent in terms of functionality, such as sulfur 11 (aluminum).

Examples of carbonates or bicarbonates of alkali metals include salts exhibiting water-soluble properties under the conditions of use, such as thorium, potassium carbonates or bicarbonates, and thorium sesquicarbonate. Thorium carbonate and potassium carbonate, which are excellent in 9 fruits, are effective.

These two components can be directly blended and mixed when using the crushing agent, or the respective powders and, if necessary, a separator powder such as alumina cement can be uniformly mixed in advance and used as a hardening accelerator when used. Method, and even work during use'l
! It is also effective to add I to a quicklime-based crushing agent and to prepare the compounded amount of C1 in advance. In this case, the two components are mixed in advance to form a curing accelerator.
For example, after curing (jN 1lL6.2 is also self-effective) 'luminacemen I, etc. () [do you use) θ equivalent (is there)?

In the present invention, when the IJg crushing agent is mixed (jl), the reason why the hardening acceleration effect of the IJg crushing agent is expressed. However, the expression of such effect ↓ 1 was not observed when using the round taste, and -2'' when using the two components together.
This is the first time that the effect appears, and it reacts with the calcium component in the crushing agent and the two-component force ``■'', and the ``C double salt ``1- or 41-'' produces ``(IJ effect)''. Working people and il+
be noticed. - Mixed IL of ingredients can be selected from good to good, but from the viewpoint of efficacy, it is better to mix an equivalent amount of IL into IL.

Ratio of use of hardening accelerator - I skin (I4' agent usage site 0) t'l business article ('!, crushing agent used 0 types (11,
Depending on the individual compounding ingredients, etc., it may not be as good as it is, but it is usually a crushing agent for inverts [0.5 to 20% market weight culm degree based on E shore ratio]. ) Negative stars indicate on-site predictions (1:1
1 According to Mr. R's experience) 8-y decision deviation υ, 1 good.

As described in detail below, the hardening accelerating aid of the uninvented quicklime-based crushing agent allows the crushing agent to be assimilated under carefully controlled and controlled conditions, and furthermore, hardening proceeds in the third stage. (a) It provides a curing accelerating aid that is one of the safest in terms of working safety, and its practical value is extremely great.

The present invention will be further illustrated by the following examples.

Example: As a quicklime-based crushing agent, Frystar (manufactured by Onoguchi Cement Co., Ltd.) was used, and as a hardening accelerator (31 aluminum sulfate J, powder 3.5 parts by weight, carbonic acid)
A homogeneous mixture of 3.5 parts by weight of the powder and 1 part by weight of commercially available alumina cement L-powder was used.

Each powder in the proportions shown in Table 1 was mixed uniformly with 100 g of "Baplystar", and 30 g of water was added to this mixed powder and kneaded to form a slurry.

J'k 50 out of 10 each of the obtained slurry
mlN wall thickness 5mm, height 100IIIN hard PVC j! ``J bottom A'': ] was poured into the container to a depth of 5 Qmi.At this time, to remove the air inside the container, use a stopper, a pump, or rather, disturb the pouring of the slurry τj-.
I went to 'fl' and looked at the air as if it were trapped.

View of assimilation of crushing agent a: The results are shown in Part 1, J'.
4. No. J a1. :

Claims (1)

[Scope of Claims] (1) A hardening accelerator for quicklime-based crushing agents, which is a mixture of at least one soluble inorganic aluminum dino salt and at least one alkali metal carbonate or bicarbonate. 2) IIJ Trustee 1st year 4th! j bang hair! Aluminum bottom, top (
'' or sulfur convex (aluminum j・, alkali metal carbonate or charcoal fjυ point trijj1 or υ, 1 potassium carbonate lj'i!'I'ifl'f;), in the range 1 J For curing of i-4r'a (jC Shinsukega 11°3) l
'Tani sex;I! ! % l 戊Alζniuno, shioi';) At least one kind of wood and an alkali metal carbonate or heavy carbon fiQ
At least 1 weight of salt powder and 2j1 [as an agent] Luminacemen 1 is blended with 2'ζnaro/-1', stone) Schiff thread (jru crushing agent curing agent 1y promotion aid. 4) +'J soluble jjjT; in which the alkali metal carbonate is 1-lium carbonate or potassium carbonate (certain claim 3). The curing accelerator as described.