News

Basic Knowledge of Concrete Raw Materials – Admixtures(II)
by admin on 22-06-20
Post Date: 20,Jun,2022 3. The mechanism of action of superplasticizers The mechanism of water reducing agent to improve the fluidity of concrete mixture mainly includes dispersing effect and lubricating effect. The water reducing agent is actually a surfactant, one end ...
Read more
Basic Knowledge of Concrete Raw Materials – Admixtures(I)
by admin on 22-06-13
Post Date: 13,Jun,2022 Admixtures refer to a class of materials that can effectively improve one or more properties of concrete. Its content generally only accounts for less than 5% of the cement content, but it can significantly improve the workability, strength, durabi...
Read more
Performance of Concrete Admixture in Application
by admin on 22-06-06
Post Date: 6,Jun,2022 At first, admixture was used only to save cement. With the development of construction technology, admixture has become the main measure to improve concrete performance. Thanks to superplasticizers, high-flow concrete, self-compacting concrete, high-strength concrete are use...
Read more
Some Problems In The Application Of Polycarboxylate Superplasticizer(IV)
by admin on 22-05-30
Compatibility of polycarboxylate superplasticizer with other admixtures polycarboxylate superplasticizer and many superplasticizers cannot be mixed and compounded in any proportion like naphthalene and aliphatic superplasticizers. For example, the negative effect on plastic slump retention is th...
Read more
Some Problems In The Application Of Polycarboxylate Superplasticizer(III)
by admin on 22-05-23
Dosage and water consumption of polycarboxylate superplasticizer: Polycarboxylate superplasticizer has the characteristics of low dosage and high water reduction. When the dosage is 0.15-0.3%, the water-reducing rate can reach 18-40%. However, when the water-to-binder ratio is small (below 0.4), ...
Read more
Some Problems In The Application Of Polycarboxylate Superplasticizer(II)
by admin on 22-05-18
The influence of the mud content of sand on the polycarboxylate superplasticizer is often fatal, which is more obvious than the naphthalene series and aliphatic superplasticizers. When the mud content increases, the workability of conc...
Read more
Some Problems In The Application Of Polycarboxylate
by admin on 22-05-09
Superplasticizer(I) Post Date: 9,May,2022 (一) The adaptability of polycarboxylate superplasticizer and cementitious materials: In practice, it has been found that Polycarboxylate Superplasticizer have obvious adaptability problems to different cements and different types of mineral admixtures, a...
Read more
Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?
by admin on 22-05-05
Post Date: 5,May,2022 When cement is mixed with water, due to the mutual attraction between the cement molecules, the collision of the thermal motion of cement particles in the solution, the opposite charges of the cement minerals during the hydration process, and the ce...
Read more
Concrete Sealing And Curing Agent Construction Needs To Add Water Reducer?
by admin on 22-05-05
When cement is mixed with water, due to the mutual attraction between the cement molecules, the collision of the thermal motion of cement particles in the solution, the opposite charges of the cement minerals during the hydration process, and the certain association of t...
Read more
Compatibility Of Admixtures With Other Raw Materials Of Concrete
by admin on 22-04-26
Post Date: 26,Apr,2022 Effects of machine-made sand quality and admixture adaptability on concrete quality The mother rock and production technology of machine-made sand in different regions are very different. The water absorption rate of machine-made sand affects the slump loss of concrete to...
Read more
Handling Environmental Conditions When Placing Concrete Toppings(III)
by admin on 22-04-18
Cold Weather Under cold weather conditions, emphasis is placed on preventing early age freezing and managing ambient temperatures during curing to promote strength development. Managing the base slab temperature during placement and curing of the topping slab may be the most challenging aspect re...
Read more
Concrete Admixtures: The “Heroes Behind” Engineering Projects
by admin on 22-04-11
Concrete admixtures, referred to as admixtures for short, refer to substances added before or during concrete mixing to improve the properties of fresh concrete and/or hardened concrete. The characteristics of concrete admixtures are many varieties and small dosage, wh...
Read more