Mixed Methods And Performance Study Of The Waterborne Materials Premixed Dry Mortar Mediator

This topic to dry mortar mixing of the system is studied, including the fly ash, quartz sand, water reducing agent, silicon ash on the dry mortar performance influence. Fly ash has pozzolanic effect, can use the fly ash replacement part of the cement, thus saving cement contents; In addition, with the fly ash aggregate filling effect, improve the stone cement pore structure, improve dry mortar density and intensity of. The choosing of the quartz sand should be at the same time satisfy the maximum density curve theory and particle interference theory, the sand fineness modulus to the dry mortar products have an important impact on performance, anti-permeability of cement mortars with the sand fineness modulus and the increase of rise significantly, porosity decreases, and meet the requirements in consistence, the water consumption of needed less, particles of the slurry is sticky, and rapping improve, paste become close-grained, so as to improve the resistance of the mortar permeability. Different kinds of water reducing agent of dry mortar influences the performance of each different, the subject of calcium lignosulphonate is, endure the reducing agent FDN and carboxylic acid salt water reducing agent together to the influence of the dry mortar by experiments and determine the best water reducing agent types and optimum content, more three water reducing agent to the flow of the mortar degree and the shear strength and the compressive strength, the influence of carboxylic acid salt content is the lowest together, decrease water the highest rate, shear strength and compressive strength increased maximum. Silicon ash cement mortar can obviously improve the compressive strength, flexural strength and anti-permeability and improve the durability, but to the dry mortar products flow degree have adverse impact.Mixed with different kinds of the waterborne materials, the performance of the mortar is different. Through the comparison of several normal on the market the waterborne materials, the influence on the performance of the mortar, determine the best of the waterborne materials, projects are in the study of four the materials on the dry mortar the water, water flow degree of influence, the experimental results show that the water the best gomes, but to the dry mortar products flow degree have adverse effect, so gomez dosage shoulds not be too big, or, in other conditions being at the same time, the flow of the degree will add mortar dropped substantially, the influence of the workability of the mortar. Dry mortar waterborne materials mixing with the mediator in different ways, mortar of various performance is different. This subject research of the waterborne materials three different mixing with way, to keep the material mix water respectively in different amount of fly ash, the waterborne materials in different amount of cement mixed and the materials in different mix water amount of silicon ash. By comparing different mix of mortar, the way water flow degree, shear strength and compressive strength of the experimental results are compared influence, sure each kind of mixed in the mixed quantity best way, and then compare the best three mixed mode, finally can get the best way of waterborne materials mixed with mixed quantity, the water in the admixture of the same condition, the different mixing with manner, mix to20%of cement mixing with the best way, the highest water of mortar, the fluidity, flexural strength and compressive strength increased greatly.The dry mortar the influence factors of water, the water the mixed quantity of materials, and different temperature quartz sand and the mixed quantity of water reducing agent of the dry mortar products the water has a different degree of influence. The dry mortar products as the dosage of the water gomes increases, the current degree also has large improvement, and dry mortar compressive strength of the water is as admixture with the increase of the smaller and smaller. Along with the increase of temperature quartz sand, the water of the mortar better and better, as the sand by the temperature to a certain, the water reaches maximum, then with the rise of temperature, the water fall subsequently, the fluidity of mortar, the flexural strength, compressive strength have similar laws. Together with the increase of the ratio of carboxylic acid salt, the dry mortar products the water more and more high, the water reached a maximum of mortar, along with the increase in the mixed quantity, reduce the water. Mortar fluidity then water reducing agent of the mixed quantity continuously increased, flow degree increase, and finally increase to a maximum balance value, essentially unchanged, add water reducing agent dosage, the fluidity basic unchanged.