SU925897A1 - Building mortar - Google Patents

Description

(54) CONSTRUCTION SOLUTION The invention relates to the building materials industry, namely to the production of mortar, and can be used in the performance of masonry and other general construction works. The composition of the mortar is known, including, wt.%: Cement 12-25, sand 63-62, water.- the rest is 1.. The disadvantage of this composition is the sharp difference in the compressive and tensile strength of the solution, as well as the low corrosion resistance in alkaline media. The closest to the proposed technical essence and the achieved result is a solution containing fiberglass waste as a filler with a diameter of 9 11 microns and a length of 1-3 mm in order to increase the mechanical strength of the cement stone 21 However, the known solution has low corrosion resistance and reduced strength as a glass fiber with a diameter of 4-11 microns has an amorphous structure. The aim of the invention is to increase the strength of the mortar and reduce its cost. The goal is achieved by the fact that mortar, including cement, dispersively reinforcing glass fiber and water, as a dispersing glass fiber, contains crushed needle-shaped waste from the production of glass fiber of a crystalline structure with a diameter of 0.5-1 mm in the following ratio of components, wt.%: Cement 15-29.5 Shredded fiberglass wastes with a diameter of 0.5-1.0 mm59-76.5 Water Other Example. To obtain a mortar, compositions are prepared using ground glass of crystalline fiber as a filler. In tab. 1 shows the composition of the mortar.

Table 1

15.0

Cement

Crushed waste crystalline fiberglass with a diameter of 0.5-1 mm76.5

Water8,5

The shredding of waste produced in a special crusher. The resultant continuous granulometry with particle size of about a millimeter to 5 mm is obtained. DM formulations using portlet

2 3

For evaluation of corrosion resistance, two series of samples are formed in the form of beams 4x x 4x16 cm and then a shot at the site. Samples of series 1 are taken using glass fibers having an amorphous structure 1 with a diameter of 4-10 microns and a length of 23rd. The composition of the mortar is recovered from the condition of the depletion of the hand-held spindle of the connected structure of the mortar and is equal to 4: .. (cement: fiberglass). The connectivity is determined by the cone spread on a standard shaking string, it is ON mm. Samples and series are formed with the use of needle-shaped waste.

29.5

22.5

59.0

67.7 11.5 9.8

M400. Variability, compaction, hardening, and isometric of the compositions produced by the method of GOST 310-60.

In tab. 2 areaaaa results of the test mortar compositions.

T a b l c and 2

119

342

92 35.4

2293 81.2

steknyu okva, yuyyid k1ya1struktnichesky structure pgameter 0.5-1 mm and a length of 25 mm. The composition of the mortar is taken to split 1: 3 (cement: fiberglass), taking into account workability on the spreading of a 100 mm ravia cone ravia.

 Testing for durability was carried out by 1 hour after the patient after the last image / aa for 8–30 hours. Additionally, oOpawf was tested after boiling for 30 hours at the age of 6 months.

Claims (2)

In tab. 3 shows the results of durability tests. The results show that when glass fibers having an amorphous structure are used in a mortar, the curing rate decreases sharply with increasing narying time. A test 11 through 6 Meci shows that the strength of such a mortar begins to decrease, which is explained by the corrosion of the glass fiber in the mortar, while the proposed mortar, in which the glass fiber has a crystalline structure, continues to absorb strength and, therefore, has a higher durability than the famous. The use of glass fiber waste instead of an industrial glass fiber with an amorphous structure reduces the cost of the mortar .. Formula Breast Mortar, including cement, dispersively reinforcing glass fiber and water. Table 3 characterized by the fact that, in order to increase the strength of the solution and reduce its cost, as the distribution fiberglass fiberglass, it contains i measurable needle-shaped waste production of fiberglass crystal structure with a diameter of 0.51 mm at the following ratio KoufnoHeittov, wt.%: Cemeit15-29 , 5 Crushed waste fiberglass with a diameter of 0.5-1.0 mm59-76.5. WaterOstaling Sources of information taken into account during the examination 1.Vorobyov V.A. Building Materials, M., 1971, p. : SW. 2. Kudr V. seam. Investigation of the properties of cement, reinforced with koroyso. volcanic materials. Author. bottom. wow academic degree of candidate. sciences. M., 1973, p. 3, 16.