SU1293144A1 - Binder for concrete mix or mortar - Google Patents

Abstract

The invention relates to portland cementing based additives with additives used for the production of concrete mixes and mortars. The invention is aimed at increasing the strength of concrete in the early periods of hardening while maintaining the mobility of the mixture. The resulting concrete is characterized by low cost due to the disposal of industrial waste. The main part includes, in May.%: One stripped off liquor from bisulfite pulping 0.075-0.388; a byproduct of caprolactam production from toluene based on sulfate and sodium carbonate 0.003-0.1; portland cement else. 1 tab. c (o (lu x so s

Description

one

The invention relates to the manufacture of building materials, the manufacture of concrete mixtures or mortars.

The purpose of the invention is to increase the concrete's hardness in the early periods of hardening while maintaining workability and reducing the cost of the material due to the disposal of industrial waste.

For comparison, tests were carried out on a concrete mix with a known additive (according to the prototype) and a control mix without an additive.

The composition of the concrete mix C: P-1C 1: 1.4: 3.3 with a water-cement ratio of 0.5.

Example 1. Preparing to the following composition, wt.%:

Portland Cement 99.72

Waste liquor from

bisulfite cooking

wet cellulose

raw material 0,18

A byproduct of caprolactam production from

toluene based on sulfate and carbonate (sodium 0,1

Example 2. Prepared into the mouth

of the following composition, wt.%:

Portland Cement 99.9

Spent liquor from bisulphite pulping of cellulose-containing phosphate 0.075 The main product of caprolactam production from toluene based on sodium sulphate and sodium carbonate 0.025 Example 3. Cooking

of the following composition, wt.%:

Portland cement 99,609 One stripped liquor from bisulphite pulping 0.388 By-product of caprolactam production from toluene based on sodium sulfate and carbonate 0.003

One stripped off liquor from bisulfite pulping of cellulosic raw material is a waste of pulp and paper production and has the following composition, May. %:

Lignosulfonates 55.0-60.0 Mono- and oligosaccharides23.0-25.0

Mineral substances 1,0-12,0 Sulfuric, sulphate and acetic salts

o

five

acids, organic volatile acids, furfurolExtra Byproduct of production

Caprolactam has the following composition

wt.%:

Sodium Sulphate 55.0-60.0 Sodium Carbonate 29.0-34.0 Sodium Chloride 8.0-11.0 Sodium Hydroxide 1.0-2.0

One stripped off liquor from bisulfite pulping of cellulose-containing raw material is an aqueous solution with a concentration of 44-50%; a byproduct of caprolactam production is gray powder, soluble in water.

Preparation of the additive: 3-25% of the caprolactam production by-product is added to the aqueous solution of the evaporated spent liquor from the bisulfite pulping of the cellulose-containing raw material. At 20 + 5 ° C, the components are mixed until the added substance is completely dissolved.

The proposed complex additive in an amount of 0.1-0.4% by weight of the binder is injected with mixing water into the concrete mix.

The properties of the concrete mix in the preserver with the proposed additives are shown in the table. Invention Formula

Mortar for concrete or mortar, including portland cement, a component based on lignosulfonates and a hardening accelerator, characterized in that, in order to increase the strength of concrete in the early stages of hardening

preserving the workability and reducing the cost of the material due to the disposal of production waste, it contains one of the evaporated components as a component based on lignosulfonates

liquor from bisulfite pulping of cellulose-containing raw materials, and as a hardening accelerator - a by-product of caprolactam production from toluene based on sulfate and sodium carbonate at the following ratio of components, wt.%:

One stripped off liquor from - bi-sulphite pulping of cellulose containing CF 0.075-0.388

A byproduct of caprolactam production from toluene based

The amount of additive from the mass of portlad cement, 7,

The mobility of the concrete mix, cm

Editor M. Dylyn

Compiled by S. Voronin

Tehred I.Popovich Proofreader G. Reshetnik

Order 341/24 Circulation 588 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

sulfate and carbonate

sodium 0,003-0,1

Portland Cement Rest

0.28 0.1 0.4 0.5 22.0 22.0 23.0 22.0

Claims (1)

Claim An adhesive for concrete mix or mortar, including Portland cement, a component based on lignosulfonates as a component based on lignosulfonates one stripped off liquor from bisulfite cooking of cellulose-containing raw materials, and as a hardening accelerator, a byproduct of caprol production Tama from toluene sulfate based and carbon; that sodium in the following ratio of components, wt.%: One stripped off liquor from bisulfite pulping of cellulose-containing raw materials 0.075-0.388 Portland cement cement byproduct of caprolactam production from toluene based on sulfate and sodium carbonate 0.003-0.1 Rest Indicators Formulation Examples - The control- Proposed With a famous binder now The amount of additive by weight of portlad- cement,% - 0.28 0.1 0.4 0.5 The mobility of the concrete mixture, cm 3.0 22.0 22.0 23.0 22.0 The strength of concrete, MPa through 3 days 11.3 13.7 13.5 12.9 10.3 7 days 22.3 29.4 28.3 27.8 20.6 28 days 37,2 42.0 41.7 41.6 41.3