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The European Commission has submitted to member states a new draft of sanctions against Russia, including an oil embargo. Some member states that rely heavily on Russian energy sought exemptions. Western media reported that the European Commission d…
composite concrete foaming agent is a non-polluting physical foaming agent produced by processing, deforming, and synthesizing various polymer components. It has good foaming ability, and its performance is neutral. Water has good affinity, and it is…
With the wide application of polycarboxylate superplasticizer, the requirement of concrete early strength in practical engineering is more and more prominent, so the polycarboxylate superplasticizer has been the focus of research to meet the early st…