Sweden is in talks with Turkey on joining NATO and looks forward to strengthening cooperation with Turkey in security and counter-terrorism, Swedish Prime Minister Anders Andersson said recently.
Andersson held a joint press conference with visiting European Council President Michel in Stockholm on the same day. Andersson said Sweden is in dialogue with Turkey on joining the TREATY and looks forward to strengthening bilateral relations with Turkey, including cooperation in the areas of security and counter-terrorism. She said Sweden would study a number of issues raised by Turkey.
Speaking at a news conference, Mr. Michel said he believed the Swedish government was taking positive action and taking the necessary steps to reach a solution.
Sweden and Finland formally submitted their applications to NATO Secretary-General Jens Stoltenberg a few days ago. According to protocol, NATO must admit new members by the "unanimous consent" of 30 members.
Turkish Foreign Minister Mevlut Cavusoglu said His country would agree to start NATO talks with Sweden and Finland only if they reach written agreements to stop supporting terrorism and lift restrictions on exporting defense equipment to Turkey, Turkish media reported.
Affected by the ever-changing international situation, the supply and prices of international bulk pce powder are still very uncertain.
Effect of water consumption on properties of polycarboxylate concrete mixture
The influence of water consumption is very obvious. In the actual application of concrete engineering, sometimes if the water consumption is increased by more 1~3kg/m3, the concrete will appear serious bleeding phenomenon, which will cause defects such as hemp surface, sand and holes on its surface, and the uniformity of concrete pouring and construction quality cannot be guaranteed, so the strength and durability of concrete structure will be reduced.
Polycarboxylate concrete is prone to delamination and segregation.
In most cases, when polycarboxylate superplasticizer is added to concrete, the viscosity of paste will be greatly reduced. At the same time, even if the amount and water consumption of polycarboxylate superplasticizer are the best, and the phenomenon of bleeding will not occur, the phenomenon of stratification and segregation is easy to occur in concrete, which is mainly manifested in that the coarse aggregate will be separated from mortar and paste, and a large number of them will sink. This kind of concrete mixture does not have any vibration in concrete pouring, and the phenomenon of delamination and segregation is also very obvious.
Naphthalene series, aliphatic series, lignin sulfonates, aminosulfonates and other traditional superplasticizers can be mixed in any proportion, so as to meet the preparation requirements of various concretes. these traditional superplasticizers can not only be well miscible in water, but also achieve excellent superposition effect when mixed. Polycarboxylate superplasticizer has great limitations, it can only be used in combination with traditional superplasticizer lignosulfonate, and its compatibility with other traditional superplasticizers is poor. If combined with other types of traditional superplasticizer, it is not only difficult to achieve the superposition effect, but also makes the fluidity of concrete very poor, the water consumption increases greatly, the loss of slump is serious, and the concrete is dry and difficult to unload. the strength and durability of concrete will be seriously affected.
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